Keeper of the Lost Cities
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99 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.
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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 Foster living with her human family when Keeper of the Lost Cities opens?
San Diego
San Diego is home to Sophie and the Fosters until she learns she is an elf; when she leaves, her human family is relocated and their memories of her are erased.
Q 03Fitz Vacker, the elf who finds Sophie on her school field trip, has which special ability?
Telepath
Telepath Fitz reads minds, as Sophie does, and the two later train as Cognates, a pairing whose combined power depends on trusting each other completely.
Q 04When Fitz first mentions Foxfire academy, what does Sophie take the name to mean?
A fungus
A fungus is her guess, because foxfire is also the eerie glow that some fungi give off on rotting wood; she can't help laughing that an elvin school shares the name.
Q 05The elvin couple who take Sophie in and later adopt her are named what?
Grady and Edaline
Grady and Edaline Ruewen had shut themselves away at Havenfield after their daughter Jolie died in a fire; taking in Sophie slowly draws them back into the world.
Q 06Which 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
Mr. Forkle's alias suits a man of many identities: forkle is a Norwegian verb meaning 'to disguise', and his full name, Errol Loki Forkle, gives the initials E.L.F.
Q 08Which group of criminal extremists is the main antagonist of Keeper of the Lost Cities?
The Neverseen
The Neverseen spend years working in secret, and one of their leaders turns out to be Lady Gisela, the mother of Sophie's close friend Keefe.
Q 09What does Keefe Sencen's special ability let him do?
Read people's emotions on physical contact
Keefe is an Empath, so he can read people's emotions on physical contact; he shares the gift with his father, Lord Cassius, who constantly belittles him.
Q 10Which special ability does Dex Dizznee, Sophie's best friend and a talented alchemist, have?
Technopath
Dex Dizznee is a Technopath, and the gift backfires in book three, when the Council uses a circlet he built to shut down Sophie's abilities, to his lasting remorse.
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
A school for banished elves, Exillium once forbade its students even to share their names; Sophie's complaints to a Councillor brought reforms that made it kinder.
Q 13Which ability slipped out of Linh Song's control with disastrous results?
Hydrokinetic
Hydrokinetic Linh Song lost her grip on the water and caused a flood in Atlantis, which earned her the nickname 'the girl of many floods'; her twin Tam refused to leave her side.
Q 21Sophie'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 22Verdi, the permanent resident of Havenfield who refuses Grady's diet plan, is what kind of animal?
A Tyrannosaurus rex
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 23Silveny 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 14Wylie Endal shares the physician Elwin's special ability, which lets them sense and manipulate what?
The colours of light
The colours of light answer to Flashers such as Wylie and Elwin; Wylie was raised by Tiergan after the Council ordered the mind of his father, Prentice, to be broken.
Q 15Which title is the second Keeper of the Lost Cities novel?
Exile
Exile takes its title from the elves' underground prison, and it opens with Sophie discovering Silveny, a rare alicorn who trusts no one but her.
Q 16Which Keeper of the Lost Cities book is numbered 8.5 and alternates between Sophie's and Keefe's perspectives?
Unlocked
Unlocked looks like a companion guide, but its novella half carries the main plot straight on from book eight's cliffhanger, in chapters that swap between Sophie and Keefe.
Q 17What is the title of the ninth Keeper of the Lost Cities novel, released in November 2022?
Stellarlune
Stellarlune takes its title from Lady Gisela's secret project of the same name, the experiment on her son Keefe that leaves him with alarming new abilities.
Q 18Which Keeper of the Lost Cities novella, released in December 2024, is told entirely from Keefe's point of view?
Unraveled
Unraveled, Book 9.5, fills in what Keefe did after running away to the human world, while his friends back home were busy with the events of book nine.
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 landed the film rights in April 2024, with the author as executive producer, three years after Disney had announced an adaptation of its own.
Q 20Which director was announced in January 2021 to adapt Keeper of the Lost Cities for Disney?
Ben Affleck
Ben Affleck was to direct the film for Disney and adapt the script with Kate Gritmon, but three years later the film rights were announced at a different studio.
Q 24Sophie's stuffed elephant, which she cannot sleep without, is named what?
Ella
Ella is the bright blue elephant Sophie has had since she was small, and the comfort she carries with her when she leaves the human world for good.
Q 25What is the gooey elvin dessert said to taste like cookies soaked in ice cream with frosting and butterscotch called?
Mallowmelt
Mallowmelt wins Sophie over on her first day at Havenfield, when she declares it the best thing she has ever tasted; her human sister Amy later falls for it just as hard.
Q 26What is the small silver gadget elves use to call each other called?
Imparter
An Imparter shows whoever's name you say on its screen, like a videophone; the one Keefe uses to reach his mother, Lady Gisela, is blood-sealed and opens only with his own blood.
Q 27A 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 28In 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 29Which Councillor is the only other known Inflictor and so becomes Sophie's mentor?
Bronte
Bronte, the only other Inflictor, is an awkward choice of mentor: he voted against letting Sophie into Foxfire and was long one of her sternest critics on the Council.
Q 30Each Councillor guards a cache holding what?
Forgotten Secrets
Forgotten Secrets are memories judged too dangerous for even the twelve Councillors to carry, so each is locked in a cache; Keefe once stole a cache from Sophie by mimicking her voice.