[[caption-width-right:350:The title page.]]

''Trompez L'esprit'' (French for ''Illusions of the Mind'') is a WesternAnimation/FostersHomeForImaginaryFriends fan webcomic created by Website/DeviantArt user [[http://pentical.deviantart.com/ Pentical]]. It takes place several years after the original show, where life for imaginary friends hasn't exactly gotten brighter. All imaginary friends are now under heavy supervision and are required to be chipped by their owners, those who aren't are taken in by the newly-formed Bureau for Imaginary Control. The BIC began their rampage with Foster's, claiming the house needed to be put under quarantine and taking many imaginary friends and even Frankie into custody. Despite fighting back, very few were left, and those who were (Mac, Bloo, Mr. Herriman, Madame Foster, and a small handful of imaginary friends) were forced to hide out in a bomb shelter for the next several years.

The main protagonist is Kate, a young imaginary friend who has been suffering the same dream over and over again. Not only that, she also notices she's not quite like the other imaginary friends, as she grows and matures like a human child and doesn't remember her creator. After Mr. Herriman, while lecturing her, accidentally slips up and nearly reveals a well-hidden secret, Kate becomes convinced there's something more to her than the others are letting her in on, and she begins asking questions and investigating. Seeing how much it is upsetting her, Mac, who is now a young man, finally reveals the truth of her past, [[spoiler: that she is actually the half-human daughter of Wilt and Frankie, and the BIC was after her specifically]]. Desperate for more answers, Kate, along with Mac and Boo, sets out into the real world, but things don't go as simply as they may have hoped and they end up on the run from the BIC with even more questions than before. Later on Jake Derbihill, a detective, and Betsy, another imaginary friend join the trio. Together, the group searches for answers about Kate's past and the friends who were taken by the BIC.

Can be read [[http://pentical.deviantart.com/gallery/433222 here]]. Unfortunately, it hasn't been updated since 2009 and may very well be considered an OrphanedSeries by this point.

!! This webcomic provides examples of:
* {{Animesque}}: Sort of. The manga influence is there, but it still retains a bit of the Western cartoony style the original series had.
* ArtEvolution: Pentical's drawings become more detailed in the later comics.
* BlandNameProduct: Many, such as the search engine "Moogle" and a restaurant called "House of Waffles"
* BreakingTheFourthWall: Occasionally characters are shown either being crushed by or staring at the speech bubbles.
* CrapsackWorld: For imaginary friends and occasionally their sympathizers, at least.
* CrossPoppingVeins: Used sometimes.
* DarkerAndEdgier: Somewhat.
* DeadFic: Most likely, it hasn't been updated since 2009.
* DonutMessWithACop: The cops are shown eating donuts in chapter 4.
* FaceHeelTurn: Dr. Geisel appears to have pulled this at first, [[spoiler: but it turns out to be an imposter named Maynard Geirfrie. The real Dr. Geisel apparently died six years earlier.]]
* FacePalm: Mac does this quite a bit. Mostly in response to whatever Bloo says.
* ForeignLanguageTitle
* HalfHumanHybrid: [[spoiler: Kate is half human, half imaginary. To be even more specific, she's the daughter of Wilt and Frankie.]]
* HeIsAllGrownUp: Mac.
* HumanMomNonhumanDad
* ItsAllMyFault: Part of the reason why no one tells Kate of her past for so long is because Mac was afraid she would blame herself for all the awful things that had happened. It ends up being {{Subverted}} though, as Kate is aware she was too young for it to be her fault and she would have gotten over any guilt eventually.
* JerkWithAHeartOfGold: Bloo is still Bloo, but he genuinely cares about Kate and Mac.
* OrphanedSeries
* PapaWolf: There's no way in hell [[spoiler: Wilt's]] gonna let the BIC take his daughter.
* ParentalAbandonment: Both Mac and [[spoiler: Kate]].
* PeekABangs: Sort of. Kate doesn't actually have hair, but she does have pointy cheeks, which seem to act as hair and occasionally cover her left eye.
* TheReveal: [[spoiler: That Kate is half-human]]. It's not particularly shocking though, as it's hinted at throughout most of chapter 1.
* SweatDrop: Like the CrossPoppingVeins, it's used occasionally
* WallOfText: Played for laughs in chapter 1, where Mr. Herriman is actually being weighed down by Kate's speech bubble as she rants.
* WebcomicTime: The comic spanned between 2005-2009, but no more than a few weeks pass in-story.
* YouRemindMeOfX: Kate apparently reminds Mr. Herriman of Frankie quite a bit. [[spoiler: Make's sense, she is her mother after all.]]