A series of three teenager's fantasy books by Eric Lhomme, written in 2001 and first published by Scholastic in 2003.

The Lost Island is a strange MagicalLand: Not quite magic, because people go to the same kinds of schools as we do, wear the same clothes, have electricity and all that goes with it (televisions, computers, video games, cinema theaters), etc. And it's not quite a Land, because there is no guns, cars, or cops, but carts and knights instead. And magical creatures (the korrigans) and wizards as well.The reason for this is that the island once was torn away from the (real) mainland and now is stuck between our dimension (the Real World) and a pure Magical Land, the Uncertain World.

The 12-year-old Robin Penmarch is taken in as an apprentice to the sorcerer Quadehar because he shows an aptitude for magic. Soon afterwards, Robin receives serious threats from the Uncertain World and its evil Overlord, the Shadow. The Shadow lusts for Robin for unknown reasons. Robin and his four friends soon have to do incursions in Uncertain World in order to resolve mysteries.

The Lost Island is a MagicalLand with modern comforts but no disadvantages from the Real World (such as pollution). Where else will sorcerers ever use computers? Add Robin's hilarious FiveManBand and fascinating magic lessons, and you have one of the rarest fantasy books from a Romance-language country.

The three books are ''Quadehar the Sorcerer,'' ''The Mystery of Lord Sha,'' and ''The Face of the Shadow.''

Not to be confused with [[http://en.wikipedia.org/wiki/The_Book_of_Stars The book of Stars]]

!!This series provides examples of:

%%* AbhorrentAdmirer:[[spoiler: Agatha for Robin in the second book]]
%%* ActionGirl: Kushumai
* AerithAndBob:Quadehar, Kushumai, Yorwan, Urien, Charfalaq...along with Robin, Agatha, Alicia, Thomas, Amber, and Kyle.
* AdultsAreUseless:The FiveManBand have to do all the work to find Agatha in Uncertain World or rescue Robin later on.They're 13 years old.
* AllThereInTheManual:At the end of the first book, the whole rune alphabet as well as the gestures associated with spells are reproduced.
* BerserkButton:Don't try seduce Robin in front of [[ClingyJealousGirl Amber]].[[spoiler:And don't dare wound him, either. After Amber succumbed to MindControl, she literally became TheBerserker]]
%%* BetaCouple:[[spoiler:Romaric and Coralie.]]
* BrotherSisterTeam:Kids in the band are usually related. (sisters and cousins)
%%* TheBully: Agatha and Thomas in first book.
* ButtMonkey: Bertram. When he's introduced to Robin's friends, he begins to tell lame jokes to everyone, and ends up on the floor [[GroinAttack beaten up]] by Amber.
%%* TheChosenOne: Robin
* DanceOfRomance: Amber and Robin had three parties where they could dance together. The second time Robin notices that "At the end, he found she started to look at him strangely."[[spoiler: It helped Coralie and Romaric, too.]]
* DisappearedDad:For Robin in the two first books.[[spoiler:Then he realizes his real mom is [[MissingMom missing]] as well.]]
%%* DoorstopBaby:Kyle
* TheDragon: [[spoiler: Eusebe of Gri, the monastery of Gri's Wizard in chief. At first he seems like he just doesn't like Quadehar very much, but then he tried to jail him for only that reason. The truth is that he's a traitor in the Shadow's service.]]
* DubNameChange:
** In the original version, Robin Penmarch was Guillemot de Troil. (Guillemot is not a real name but a common noun in French, so he was more Aerith than Bob in that version).
** Other changes in names are minor, like Agatha instead of Agathe or the particle "de" removed from all the surnames.
** The "mainland" which the Lost Island belonged at first is actually France. More precisely, it is Brittany, where korrigans and menhirs originated.
** The Lost Island was named the Island of Ys. Ys is a legend from Brittany too, [[http://en.wikipedia.org/wiki/Ys about a vanished city]]
** And peanut butter toasts? They were "[[http://static.tvtropes.org/pmwiki/pub/images/Tartine_et_pot_de_Nutella_9171.jpg Nutella]]" (and butter) toasts. That chocolate dough from Italy is as popular there and in France as peanut butter can be in English speaking countries.
* ElementNumberFive: The flesh. Hum, what? All living things, actually.
* EvilAllAlong: [[spoiler:Charfalaq, the Great Wizard. Also Eusebe, Wizard of Gri monastery.]]
%%* EvilLaugh: The Shadow, of course.
%%* EvilOverlord: The Shadow
%%* EvilRedhead: Thomas
* {{Expy}}: The gommons, aquatic monsters from Uncertain World, have a strong resemblance to the Film/CreatureFromTheBlackLagoon
* TheFaceless: The Shadow. He looks like a literal shadow but is a real guy in that disguise.
* FakeWeakness: [[spoiler:Old Charfalaq faked his bad health and his blindness]]
* {{Fictionary}}: The korrigani (Korrigans's langage) and the ska (Uncertain World language)
%%* FiveManBand
%%** TheHero: Robin
%%** TheLancer: Romaric
%%** TheSmartGuy: Gontrand
%%** TheBigGuy:Amber, hilariously enough.
%%** TheChick:Coralie
* GreenAesop: Polluting and lethal stuff (cars, weapons other than swords...) are banned from Lost Island. Electricity is generated using solar and wind power.
* HandsplayInTheater: Amber try to touch Robin's hand during a movie, but she only gets him to blush, so she gives up.
* HeelFaceTurn:[[spoiler: Agatha and Thomas]]
* HeterosexualLifePartners: Urien and his butler Valentin. They're childhood friends and unmarried. Valentin had to become the butler [[HoYay to avoid comments.]]
* IJustWantToBeSpecial: Before he learns he is an extremely gifted and powerful sorcerer, Robin wishes to be special.
* IOweYouMyLife: [[spoiler:The reason why Thomas stops bullying Robin and starts stalking and admiring him.]]
%%* KidHero
* KnightInShiningArmor: Knights from Lost Island are literal ones. Romaric acts as one, even before he starts knighting school.
%%* TheLadette: Amber
%%* LostWorld: Well, the Lost Island.
* LukeIAmYourFather: Subverted; the Shadow tries to trick Robin with that revelation once. He even get the BigNo response. But it was BlatantLies[[spoiler: Subverted again when Robin believed he was Lord Sha/Yorwan's son until a spell revealed he was not. Played straight as Robin's real father is actually his mentor Quadehar; and his real mom is the witch knight Kushumai.]]
* MagicAIsMagicA: Inverted: Quadehar gives many details on how to invocate the runes alphabet in order to construct gladrs ( spells), runes that are based on constellations shapes.
* MagicalLand: Uncertain World. The Lost Island is a subversion: magical with Real World's best (technological) parts.
* ManipulativeBastard:[[spoiler:Charfalaq/The Shadow. He manages to be the BigGood and BigBad at the same time. And Eusebe, TheDragon]].
* MilkyWhiteEyes: The sea people. Contains a subversion as they're not blind.
* OnlyChildSyndrome:The twins are the exception.
%%* OurOrcsAreDifferent
* ParentalSubstitute: Quadehar is this for Robin.[[spoiler:HilariousInHindSight]]
* PlatonicLifePartners: Agatha and her minion Thomas. Agatha says they're "not married".[[spoiler: And she show sinterest in Robin, then in Gontrand.]]
* PolarOppositeTwins: Amber and her twin Coralie. One is short haired with a nasty temper and boyish manners. The other is a long haired fashionista with hundreds of admirers.
* PowersViaPossession:[[spoiler: Amber became strong and very angry when Robin is threatened in books 2 and 3. It's mistaken for PowerOfLove, but Kushumai used a spell on her.]]
* RelationshipUpgrade:At first Robin thinks that Amber is the worst teasing chick of Lost Island, and Amber keeps on bothering him because she's annoyed by his weakness.[[spoiler: Then they start to care for each other, until the FirstKiss at the end.]]
** Agatha's feelings for Robin are at first hate and bullying that goes with it, then crush on him after [[RescueRomance he saved her]],and finally friendship.
%%* RetiredBadass: Uncle Urien.
* SamusIsAGirl: Amber's reaction, when Kushumai take her helmet off for the first time.
* SaveTheVillain:The first travel to Uncertain World is mostly to save the school bully Agatha.
%%* SealedWithAKiss:[[spoiler: Robin and Amber, on very last page.]]
%%* ShipTease:[[spoiler: Agatha and Gontrand]]
* ShoutOut: A magician from Uncertain World once invoke: [[http://tvtropes.org/pmwiki/pmwiki.php/Main/He-ManAndTheMastersOfTheUniverse?from=Main.HeMan "By The Power Of Gray Skull, I have the power!"]]. [[HilarityEnsues No,really.]]
** Gontrand, mocked for wanting to play his zither every time he can, is nicknamed [[ComicBook/{{Asterix}} "Cacophonix".]]
** Bertram once says that [[Series/TheXFiles "The truth is out there."]]
* SomeoneToRememberHimBy: For Alicia, her son will always remind her of Yorwan, the vanishing fiance.
%%* StarCrossedLovers: Alicia and Yorwan.[[spoiler: Quadehar and Kushumai may count too.]]
%%* SwitchedAtBirth:[[spoiler: Kyle and Robin.]]
* ThemeNaming: No matter if the hero is named Robin or Guillemot, he still has a bird name. The twin sisters Amber and Coralie are named after minerals (amber and coral).
%%* TomboyAndGirlyGirl: Amber and Coralie.
* TrademarkFavoriteFood: For Robin, peanut butter and jam toast.
* TrueCompanions: The Kids become this before they go to the Uncertain World for the first time.
* WeCanRuleTogether: Not sure to pull down his magical defenses, the Shadow makes this offer to Robin.
%%* WorldOfNoGrandparents
* YouMeanXmas: The Samain celebration. That was Halloween's first name. Christmas is evoked trough "Winter Solstice".