Keeper of the Lost Cities
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100 free Keeper of the Lost Cities trivia questions with answers — literature quiz, new questions added Oct 2026.
51 free Keeper of the Lost Cities trivia questions with answers. Keeper of the Lost Cities has grown from one book about a mind-reading twelve-year-old in San Diego into a nine-novel, two-novella series with a graphic novel, a film deal and a fandom that argues about ships in the comments. This quiz is for readers who have been to Foxfire and back. It starts gently (which ability lets Biana turn invisible, what colour Sophie's stuffed elephant is) and climbs to questions only a re-reader will get: which Councillor mentors Sophie in Inflicting, what Mr. Forkle's initials spell, which mascot goes with Level Three, and what a Wanderling seed is coiled with. It covers all six intelligent species, the Lost Cities themselves, Havenfield's animals, elvin gadgets like imparters and registry pendants, and publication facts about Shannon Messenger and the books. Everything here is safe for the 9-to-14 readers the books are written for, and light on late-series spoilers. Every answer was checked against the published books' reference material or the series' official and community wikis, and the source sits under each explanation.
30 of 100 questions with answers and explanations. Play the quiz
Q 01Who wrote the Keeper of the Lost Cities series?
Shannon Messenger
Shannon Messenger wrote every Keeper of the Lost Cities book; the series opener was her debut novel, published by Simon & Schuster's Aladdin imprint, and introduced twelve-year-old Sophie Foster.
Q 02In which US city is Sophie living with her human family when the first book opens?
San Diego
Sophie lives in San Diego with her human family, the Fosters, when Book One opens; at twelve she has skipped so many grades that she is already a high-school senior.
Q 03Which teenage elf tracks Sophie down on a school field trip and tells her she is an elf?
Fitz
Fitzroy Vacker had been searching the human world for her on his father Alden's behalf for years before he found her at the museum.
Q 04When Fitz first tells Sophie the name of the academy she will attend, what does she assume it is?
A fungus
When Fitz names Foxfire, Sophie asks if it is a fungus, since foxfire is the bioluminescent glow of fungi on decaying wood; Fitz looks a little insulted.
Q 05The elvin couple who take Sophie in and later adopt her are named what?
Grady and Edaline
Grady and Edaline Ruewen take Sophie in at Havenfield, their animal-rehabilitation estate, and formally adopt her at the end of Book One; they had lost their daughter Jolie years earlier.
Q 06Which rebel organisation turns out to have created Sophie through Project Moonlark?
The Black Swan
The Black Swan, the rebel group whose leaders call themselves the Collective, engineered Sophie's genetics under Project Moonlark and hid her in the human world.
Q 07Sophie's old human-world neighbour, who turns out to run Project Moonlark, is known by what name?
Mr. Forkle
'Forkle' means disguise in Norwegian, and his full name, Errol Loki Forkle, has initials that spell E.L.F.
Q 08Which group of criminal extremists is the main antagonist of the series?
The Neverseen
The Neverseen are the series' black-cloaked villains, marked by a white eye inside a circle; their leaders have included the Pyrokinetic Fintan and Keefe's mother, Lady Gisela.
Q 09What does Keefe Sencen's Empath ability let him do?
Read people's emotions on physical contact
Empaths sense other people's emotions through physical contact; Keefe's Empath ability is so sharp that he can often read Sophie's unusually strong feelings without touching her.
Q 10Dex Dizznee, Sophie's best friend, is a talented alchemist and what kind of ability-holder?
Technopath
Dex Dizznee is a Technopath, an elf who senses and manipulates technology; he builds gadgets for Sophie and, as a gifted alchemist, keeps dyeing her pet imp new colours.
Q 11What is the name of Fitz and Biana's older brother?
Alvar
Alvar Vacker is the eldest of Alden and Della's three children; at the end of Book Four he is exposed as a traitor working against Sophie and her friends.
Q 12What is Exillium, the place where Sophie first meets twins Tam and Linh Song?
A school for banished elves
Exillium is the school for banished elves; its students are called Waywards rather than prodigies and are sorted into Left, Right and Ambi Hemispheres.
Q 13Linh Song earned the nickname 'the girl of many floods' while mastering which ability?
Hydrokinetic
Linh Song is a Hydrokinetic whose control of water once failed so badly that she flooded Atlantis; her twin Tam refused to be separated from her.
Q 21The graphic novel of the first book, released in November 2023, was illustrated by whom?
Gabriella Chianello
Gabriella Chianello illustrated Keeper of the Lost Cities: The Graphic Novel, Part 1, published in November 2023 as the first comic adaptation of Sophie's story; Jason Chan paints the novel covers.
Q 22Sophie's pet imp, rescued from a verminion at Havenfield, is called what?
Iggy
Iggy, the tiny imp Sophie keeps as a pet, is notorious for his foul 'Iggy breath'; Dex dyes his fur a new colour in almost every book, including pink and curly.
Q 23Verdi, the permanent resident of Havenfield who refuses Grady's diet plan, is what kind of animal?
A Tyrannosaurus rex
Q 14What can a Flasher such as Wylie Endal sense and manipulate?
The colours of light
Flashers like Wylie Endal sense and manipulate the colours of light; Wylie's father Prentice had his mind broken for refusing to reveal where Sophie was hidden.
Q 15Which title is the second Keeper of the Lost Cities novel?
Exile
Exile introduced Silveny the alicorn and the underground prison the book is named for.
Q 16Which book sits at number 8.5 in the series and alternates between Sophie's and Keefe's perspectives?
Unlocked
Unlocked, Book 8.5, pairs a novella that alternates between Sophie's and Keefe's points of view with a series-guide section of recipes and character files.
Q 17What is the title of book nine, released in November 2022?
Stellarlune
Stellarlune, Sophie Foster's ninth full-length adventure, was published by Simon & Schuster's Aladdin imprint in November 2022, the first new full-length novel in three years.
Q 18The novella released on December 3, 2024 is called what?
Unraveled
Unraveled, Book 9.5, was published on December 3, 2024 and, unlike the main novels, is told from Keefe's point of view rather than Sophie's.
Q 19Which studio was announced in April 2024 as holding the rights to a Keeper of the Lost Cities film?
Warner Bros. Pictures
Warner Bros. Pictures took on the Keeper of the Lost Cities film in a deal announced in April 2024, replacing the earlier plan for a Disney adaptation.
Q 20Which director was originally announced in January 2021 to adapt the series for Disney?
Ben Affleck
Ben Affleck was announced in January 2021 to direct and co-write Disney's planned Keeper of the Lost Cities adaptation, sharing the screenplay with Kate Gritmon.
Verdi is a Tyrannosaurus rex with bright neon-green feathers; Grady keeps trying to train her onto a vegetarian diet so she can be released to the Sanctuary.
Q 24Silveny and Greyfell's twin foals, born prematurely in Flashback, are named what?
Luna and Wynn
Luna and Wynn, Silveny and Greyfell's twin foals, arrived prematurely in Flashback and had to finish developing inside a troll hive before joining their parents.
Q 25Sophie's stuffed elephant, which she cannot sleep without, is named what?
Ella
Ella, Sophie's bright blue stuffed elephant, came with her from the human world; Sophie cannot sleep without her and has clung to her through many nightmares.
Q 26What is the gooey elvin dessert said to taste like cookies soaked in ice cream with frosting and butterscotch called?
Mallowmelt
Mallowmelt is the gooey elvin dessert that tastes like cookies soaked in ice cream with frosting and butterscotch; it is Sophie's favourite treat, often baked by Edaline.
Q 27What is the small silver gadget elves use to call each other called?
Imparter
An Imparter is the small silver gadget elves use to call one another: say a name into it and that person's face appears on its screen.
Q 28A Wanderling is a memorial tree grown from a seed coiled with what from the elf it honours?
A strand of hair
A strand of the elf's hair is wrapped around the Wanderling seed so the tree takes on their colouring; Sophie and Dex both have Wanderlings from when they were presumed dead.
Q 29In the elvin sport of Splotching, what do players use to hurl the coloured ball at each other?
Telekinesis
Splotching players fling the coloured splotcher back and forth with telekinesis; in Sophie's first match, against Fitz, the clash of their minds flung both of them across the room.
Q 30Which Councillor is the only other known Inflictor and so becomes Sophie's mentor?
Bronte
Councillor Bronte, one of the Ancients, is the only other known Inflictor, so he becomes Sophie's mentor in controlling the ability after it manifests in Book One.