“Sometimes the most important things are hidden in plain sight, if only you know how to look.”
— Main character Flossie figuring out a clue hidden in a seemingly ordinary object.

Phoebe Stone (2010)
Genre
Children's / Historical Fiction / Mystery
Reading Time
360 min
Key Themes
See below
Sign in to track this book
Amidst the wartime whispers of a remote Maine coast, Felicity must decipher coded letters, mend a fractured family, and navigate her first crush to unravel her glamorous parents' secret disappearance.
Ten-year-old Felicity lives a seemingly normal life in Washington D.C. with her glamorous parents, a famous actress and a diplomat. However, the looming threat of World War II and her parents' urgent work lead to Felicity being abruptly sent away. Her mother, Marla, and father, Jonathan, explain it is for her safety, but the secrecy surrounding their departure leaves Felicity anxious and abandoned. She is driven to a remote, seaside house in Maine, a place she has never seen before, to live with her estranged Uncle Gideon and Aunt Miami, and their reclusive son, Derek. The transition is jarring, and Felicity immediately senses the unusual dynamics and hidden tensions within the household.
Upon arrival at the sprawling, somewhat dilapidated house, Felicity meets her new guardians. Uncle Gideon is a quiet, stern man preoccupied with his work, which involves a locked study and mysterious papers. Aunt Miami is a flamboyant, dramatic woman obsessed with Shakespeare, constantly quoting 'Romeo and Juliet' and believing herself to be star-crossed. Their son, Derek, a boy close to Felicity's age, stays in his room, refusing to interact with anyone, especially Felicity. Felicity feels like an outsider, navigating their strange routines and trying to understand the unspoken rules of the house. She misses her parents desperately and begins to question the true reason for her sudden relocation.
One evening, Felicity overhears Uncle Gideon in his study, looking distressed. Later, she spots a letter on his desk addressed from her parents. Curiosity overriding caution, Felicity manages to sneak a look at it. The letter is not a typical family update; instead, it is filled with seemingly random numbers and letters. Felicity immediately suspects it is a code, a suspicion fueled by her parents' secretive professions. The letter mentions mundane things, but interspersed with odd phrases and numerical sequences. She realizes her parents are not just away; they might be in danger, and this letter is their way of communicating a hidden message. This discovery ignites her determination to uncover the truth.
Felicity quickly understands that deciphering a complex code will be beyond her capabilities alone. She remembers her parents mentioning Derek's exceptional intelligence, even if he is reclusive. Despite his resistance, Felicity repeatedly attempts to engage with him, leaving notes under his door and trying to coax him out. She eventually shares her discovery of the coded letter, appealing to his sense of logic and his potential connection to the outside world, which he has shut himself off from. This shared secret slowly begins to chip away at Derek's isolation, and he shows a flicker of interest in the intellectual challenge the code presents.
After several failed attempts with various simple ciphers, Felicity and Derek continue to work on the mysterious letter. Felicity, recalling Aunt Miami's constant recitation of 'Romeo and Juliet', makes a crucial connection. She notices that some of the numbers in the letter correspond to act and scene numbers, and the accompanying words or letters seem to be references to lines within the play. Derek, initially skeptical, is intrigued by this literary approach to cryptography. Together, they confirm that the code is based on 'The Most Excellent and Lamentable Tragedy of Romeo and Juliet', using specific line numbers or words from the text as keys. This breakthrough energizes their investigation.
With the 'Romeo and Juliet' code cracked, Felicity and Derek painstakingly work through the letter. They discover that the seemingly innocuous phrases from the play, when combined according to the numerical sequence, spell out a coherent message. The message reveals that Felicity's parents are involved in a highly dangerous espionage mission related to the war effort. It details their location, the nature of their current assignment, and hints at the extreme risks they face. The decoded message also contains a warning about an impending threat, emphasizing the urgency of their situation and the need for Felicity and Derek to continue their work.
Felicity confronts Uncle Gideon with her findings, initially fearing his anger but hoping for his help. To her surprise, Gideon admits he is also part of the intelligence network and has been receiving these coded messages, though he struggled to decipher them as quickly as the children. He reveals that her parents are deep undercover, working against enemy spies. Shortly after, a second, more frantic coded letter arrives. This one indicates that her parents' cover has been compromised, and they are in grave danger, possibly captured or being pursued. The message includes coordinates and a desperate plea for help, increasing the stakes significantly.
The arrival of the second letter plunges the household into a desperate race against time. Felicity, Derek, and Uncle Gideon now work together, pooling their strengths. Derek's analytical mind excels at decryption, while Felicity's intuition helps connect disparate pieces of information. Uncle Gideon uses his contacts and resources, trying to verify the information and determine the best course of action. They realize the message is not just a plea for help, but also a clever ruse designed to mislead their captors or pursuers, containing a secondary, hidden layer of meaning. The tension is palpable as they understand that their parents' lives depend on their ability to act swiftly and accurately.
As they struggle with a particularly tricky part of the second code, Aunt Miami's constant Shakespearean recitations, which previously seemed like a distraction, suddenly provide a crucial insight. One of her dramatic pronouncements, seemingly random, sparks an idea in Felicity. She realizes that a subtle inflection or a specific, less common line Miami quotes might be the key to unlocking a secondary layer of the code, a nuance that even Gideon missed. Miami's deep, almost obsessive knowledge of 'Romeo and Juliet' allows them to interpret a specific phrase in the letter not just literally, but in the context of the play's deeper meaning, revealing a hidden instruction or warning.
Armed with the fully deciphered message and Uncle Gideon's intelligence connections, the family sets in motion a plan to rescue Felicity's parents. The plan is intricate and dangerous, involving coordination with other agents. Felicity and Derek play a vital role in providing the precise details gleaned from the code. After a period of intense waiting and anxiety, news finally arrives: Felicity's parents have been successfully rescued. They return to the Maine house, exhausted but safe. The reunion is emotional, filled with relief and gratitude. Felicity finally understands the gravity of her parents' work and the crucial part she and Derek played in saving them.
The harrowing experience of deciphering the code and the subsequent rescue effort fundamentally changes the family dynamics. Felicity's parents, while still committed to their work, are more open with her. Uncle Gideon and Aunt Miami, having witnessed their niece and son's courage and intelligence, become warmer and more appreciative. Most significantly, Derek emerges from his self-imposed isolation. His collaboration with Felicity, the shared purpose, and the success of their mission give him a new sense of confidence and connection. He and Felicity develop a strong, lasting bond, forged in the crucible of their shared adventure. The family, once distant and fragmented, begins to heal and grow closer.
The Protagonist
Felicity transforms from a somewhat naive and lonely child into a confident, capable young detective, understanding the complexities of the adult world and forging strong family bonds.
The Supporting
Derek gradually overcomes his reclusiveness and fear, finding purpose and connection through his collaboration with Felicity and ultimately forming a close bond with his family.
The Supporting
Gideon moves from a distant and somewhat overwhelmed guardian to an active, supportive, and more openly involved figure in the family, recognizing the children's capabilities.
The Supporting
Aunt Miami's seemingly peripheral role becomes central as her unique knowledge proves crucial, solidifying her place as a valuable and respected member of the family's efforts.
The Supporting
Marla's arc is less central, focusing on her resilience and cleverness in communicating from behind enemy lines, ultimately returning safely to her daughter.
The Supporting
Jonathan's arc revolves around his courage and resourcefulness in the field, culminating in his rescue and reunion with his family.
At its heart, the story explores how family bonds, even when strained or distant, provide strength and purpose. Felicity's love for her parents drives her to decipher the code, and the shared mission brings the fragmented Maine family together. Derek emerges from his isolation through connection with Felicity, and Uncle Gideon and Aunt Miami become more engaged. The crisis ultimately heals old wounds and forges new, stronger relationships, proving that family is a powerful force against adversity. This is evident in the climactic scene where the entire family, in their own ways, contributes to the rescue, culminating in a joyful reunion that solidifies their rediscovered unity.
“''Family isn't just about who you're born to, but who you choose to fight for.'”
The novel consistently plays with the idea that things are not always as they seem. Felicity's glamorous parents are secret spies; the reclusive Derek possesses a brilliant mind; and the eccentric Aunt Miami holds the key to the code. The seemingly ordinary house in Maine hides secrets, and the innocent-looking letters contain life-or-death messages. This theme reinforces the idea that true value and danger often lie beneath the surface, challenging Felicity (and the reader) to look beyond initial impressions. The 'Romeo and Juliet' code itself is a perfect manifestation of this, as seemingly random phrases conceal urgent intelligence.
“'Sometimes, the most ordinary things hide the most extraordinary secrets.'”
Felicity, a young girl, displays immense courage by taking on the daunting task of deciphering a complex code to save her parents, even when it means confronting secretive adults and an isolated cousin. Derek, too, shows courage by stepping out of his comfort zone and engaging with the world for the first time in years. The parents' own courage as spies fighting during WWII is the catalyst for the entire plot. The book emphasizes that courage is not just about grand heroic acts, but also about perseverance, intellectual bravery, and emotional resilience in difficult circumstances, especially when facing the unknown and personal fear.
“'Courage wasn't about not being scared, but about doing what you had to do despite the fear.'”
The entire mystery hinges on the power of language and storytelling. The 'Romeo and Juliet' code uses a classic play as its foundation, demonstrating how literature can be a vessel for hidden meanings and vital information. Aunt Miami's deep immersion in Shakespeare, initially a quirk, becomes a crucial asset. The parents' ability to craft such a clever code highlights their understanding of language's deceptive and communicative power. This theme celebrates the richness of literary knowledge and how it can be applied in unexpected, practical, and even life-saving ways. It shows how words, when understood deeply, can unlock secrets.
“'Words, she realized, could be weapons, shields, and secret maps, all at once.'”
Mysterious letters from Felicity's parents containing hidden messages.
The coded letters are the central inciting incident and driving force of the plot. They represent the immediate threat to Felicity's parents and create the mystery that Felicity and Derek must solve. The letters are initially perplexing, filled with seemingly random numbers and phrases, but they hold the key to understanding the parents' dangerous mission. Their arrival provides the urgent motivation for Felicity to investigate and for Derek to engage with the outside world, setting the entire narrative in motion and escalating the tension with each new message.
A complex literary cipher based on Shakespeare's play.
This is the primary method used by Felicity's parents to communicate vital intelligence. The code's reliance on 'Romeo and Juliet' is a clever twist, making it difficult for anyone not intimately familiar with the play (like Aunt Miami) to decipher. It serves as both a plot device for creating the mystery and a thematic element, highlighting the power of literature and the unexpected utility of seemingly esoteric knowledge. Cracking the code is the main intellectual challenge for Felicity and Derek, showcasing their combined intelligence and resourcefulness.
A character whose isolation creates an initial obstacle and later a crucial partnership.
Derek's reclusiveness is initially a barrier for Felicity, adding to her feeling of isolation and the strangeness of her new home. However, his exceptional intelligence, hidden behind his withdrawn demeanor, becomes indispensable for deciphering the complex code. His character arc provides a subplot of emotional growth and connection, as Felicity's persistence and the urgency of their shared mission draw him out of his shell. He serves as a foil to Felicity's outgoing nature, and their collaboration demonstrates the power of complementary strengths.
The historical backdrop that provides context for espionage and danger.
The backdrop of World War II is not just a setting but a crucial plot device that justifies the parents' dangerous espionage work, the need for secrecy, and Felicity's sudden relocation for safety. It provides a constant undercurrent of global conflict and peril, elevating the stakes of the family's personal drama. The war explains why the parents are in such a dangerous situation and why their communications are so vital and highly coded. It adds a layer of historical realism and gravity to the children's mystery, connecting their personal quest to a larger global struggle.
“Sometimes the most important things are hidden in plain sight, if only you know how to look.”
— Main character Flossie figuring out a clue hidden in a seemingly ordinary object.
“A secret shared is a secret halved, but a secret kept alone can be a very heavy burden.”
— Flossie debating whether to confide in her new friends about the mystery.
“The past isn't always behind you. Sometimes it's right here, waiting to be understood.”
— Flossie reflecting on how old family secrets are impacting the present.
“Courage isn't about not being scared. It's about doing what needs to be done even when you are.”
— Flossie facing a dangerous situation while pursuing a clue.
“Sometimes the quietest people have the loudest stories to tell.”
— Flossie observing an elderly relative who holds many secrets.
“A code is only as good as the person who can break it, and the person who created it.”
— Flossie and her friends discussing the complexities of the 'Romeo and Juliet Code'.
“Even in the darkest times, there's always a flicker of light if you know where to find it.”
— Flossie feeling discouraged but finding a new lead in her investigation.
“Family isn't just about who you're related to. It's about who you trust and who stands by you.”
— Flossie realizing the strength of her bond with her newfound friends.
“The truth has a way of coming out, no matter how deeply it's buried.”
— Flossie's relentless pursuit of the truth behind the family mystery.
“Every object tells a story, if you only take the time to listen.”
— Flossie examining an old artifact that holds a vital clue.
“It's not just about solving the mystery, it's about understanding why it was hidden in the first place.”
— Flossie contemplating the motives behind the long-held family secret.
“Sometimes the biggest adventures start with the smallest clues.”
— Flossie reflecting on how a simple code in a book led to a grand adventure.
“A lie can travel halfway around the world while the truth is still putting on its shoes.”
— Flossie realizing how easily misinformation can spread and obscure the facts.
Ready to see how well you understood this book? Take our interactive quiz with 10 questions.

Dan Gemeinhart
4.5

Kate O'Hearn
4.4

Jeanne Birdsall
4.4

Jen Wang
4.4

Wendelin Van Draanen
4.3

John Marsden
4.3

Chris Van Allsburg
4.3

Jennifer A. Nielsen
4.2