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Lost Cities Keeper Wiki
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This article contains plot details from the latest book.

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Basic Information
FoxfireFoxfire Entrance Exam

Ability DetectingAgricultureAlchemyElementalismElvin HistoryLinguisticsMetaphysicsMultispeciesial StudiesPhysical EducationSpecial Ability Focus SessionThe Universe
Level Mascots
Basic Levels
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Elite Levels
Opening CeremoniesMidtermsThe Ultimate Splotching ChampionshipFinalsThe Ethics Lecture
Lady AlexineLady AnwenSir AstinSir BubuSir CatonSir ConleyLady DaraLady DelmiraSir DonwellSir FaxonLady GalvinSir JarvinLady NissaSir TierganBarth the ReaperSir BeckettCouncillor BronteMaster CadenceLady EveraSir HardingLady IskraSir LeanderSir RosingsLady VedaLady BelvaLady ZillahLady Sanja
Known Principals
Foxfire Principal
Dame (now Councillor) AlinaMagnate Leto Kerlof
Current Prodigies
Sophie FosterBiana VackerFitz VackerKeefe SencenDex DizzneeJensi BabblosMarella RedekStina HeksMarucaTam SongLinh SongValinLex DizzneeBex DizzneeRex DizzneeTrellaDempseyShayda AdelDedraHuxleyAudric

Tiergan Andrin Alenefar, also known as Granite, is a major recurring, supporting character in the fictional book series Keeper of the Lost Cities.

He is a Telepath and Sophie's Mentor at Foxfire.


Tiergan is an anagram of Granite, both having the same letters.

He does not like being called Sir Tiergan, preferring just Tiergan. During Neverseen, Tiergan is revealed to be Granite, part of the Collective of the Black Swan. Tiergan was one of the most talented Telepaths before Sophie Foster came.  


Tiergan is described to have olive skin, shoulder-length pale blond hair, and dark blue eyes. It also states that he has a short ponytail on the back of his head. While his face holds youth, something ancient shines in his eyes. He is described as tall and thin, but a couple of inches shorter than Alden.

As Granite, he is described to look like a vague, bulky statue, due to the Indurite that he consumes.

The name Tiergan is of Irish origin and it means "strong-willed."[1]


Tiergan is a very talented Telepath, and this is the reason why he was appointed as a Mentor for Sophie.


Wylie was adopted by Tiergan after both of his parents were lost. Tiergan is shown to be very protective of Wylie.

Prentice and Tiergan were very close—so close that Tiergan was first in line to adopt Wylie before Wylie's actual family. When Prentice's mind was broken, Tiergan was full of grief and blamed Alden for the incident because Alden was the one who accused Prentice of rebellion.

Tiergan came back from retirement to Foxfire to teach Sophie. He respects her a lot and believes in her abilities and ideas and trusts her to make good decisions.

Tiergan has a lot of anger towards Alden, blaming him for the loss of Prentice. He seems to gain more respect for Alden, however, after he finds Sophie. He also is able to get past his own feelings to help the Vacker family with the grief of the loss of Alden when his mind is broken.

Tiergan doesn't like the Council because they allowed the memory break of Prentice.

In Book 4: Neverseen it was revealed that Tiergan works on the Collective under the name Granite with Mr. Forkle and it was suggested that the two could be friends or relatively close seeing how the two are around one another more than their other fellow Collective members.

In Book 4: Neverseen it was revealed that Tiergan works on the Collective under the name Granite with Blur. They work together constantly.

In Book 4: Neverseen it was revealed that Tiergan works on the Collective under the name Granite with Squall. They work together constantly.

In Book 4: Neverseen it was revealed that Tiergan works on the Collective under the name Granite with Wraith. They work together constantly.

In Book 3: Everblaze and Book 2: Exile, Fitz began attending Sophie's telepathy class with Tiergan. Even though he told Alden he would never train any Vackers, he ended up doing so.


“You're very kind. But we both know I can never match you.”

—Tiergan to Sophie, in Exile

“Trust is what gives us the confidence to step outside the safety of our own headspace and enter the darkness of another. What fuels us, guides us, pushes us to keep going, even when all hope feels lost.”

—Tiergan, in Everblaze

“Leaders must lead.”

—Granite, in Neverseen

Major Characters

Sophie Elizabeth FosterFitzroy Avery VackerBiana VackerDexter Alvin DizzneeMarella RedekKeefe SencenTam SongLinh SongWylie Endal

Known Black Swan Members
Mr. ForkleBlurCoiffeDella VackerGraniteJuline DizzneeLivvyLurMagnate Leto KerlofMityaPrentice EndalSiorSir TierganSir AstinSquallTimkin HeksTinkerWraithJolie Lucine Ruewen

Known Neverseen Members
Alvar Soren Vacker/The Boy Who DisappearedBrantFintan PyrenGethenJolie Lucine RuewenLady GiselaRuy IgnisTrixUmberVespera

Important Bodyguards

Alden VackerElwinLady Cadence TalleLord CassiusEdaline RuewenGrady Ruewen

Secondary Characters

Elves (Category)
Councillors (current and former)
Councillor AlinaCouncillor BronteCouncillor ClaretteCouncillor DarekCouncillor EmeryCouncillor LioraCouncillor NolandCouncillor OralieCouncillor RamiraCouncillor TerikCouncillor VeliaCouncillor ZarinaCouncillor Kenric Elgar FathdonFintan PyrenFallon Vacker

Stina HeksJensi BabblosMarucaDempseyValinLexRexBexDamel KafutaShayda AdelTrellaAudricHuxley

Sir AstinLady GalvinLady IskraLady BelvaSir ConleyLady AlexineSir DonwellSir RosingsSir HardingLady VedaLady AnwenSir BeckettSir CatonLady DaraLady EveraSir FaxonLady NissaLady ZillahLady SanjaCoach RohanaCoach BoraCoach Wilda

Benesh VackerKesler DizzneeBrisaCaprise RedekCeriCyrah EndalHarlin VackerJujiJurekMarella's DadLuzia VackerMai SongNorene VackerOllie HeksOrem VackerQuan SongQuinlin SondenSilla HeksLady Pemberley

Humans (Category)
Foster (Freeman) Family
Amy Rose FosterEmma Iris FosterWilliam David FosterConnor, Kate, and Natalie Freeman
Mr. SweeneyBethany LopezEleanor WrightEthan Benedict Wright IIGarwin Chang

Goblins (Category)
Queen HyldaBrielleBunheadCadocCouncillors' BodyguardsLefty and RightyLoviseWoltzer

Ogres (Category)
King DimitarQueen GundulaCadfael

Gnomes (Category)
CallaBarth the ReaperBrierLurMityaSiorGoraGerdaYuriAmisi

Dwarves (Category)
King EnkiErmeteIrjaKrikorKunYegor

Trolls (Category)
Empress Pernille

Animal Characters

BullhornIggyMartySprocketWatsonThe VerminionVerdiSilvenyGreyfellLunaWynnGildieLinh's Murcat

Stuffed Animals
Bun-BunElla the ElephantHarry the JackalopeLady SassyfurMr. SnugglesMrs. StinkbottomStinky the Stegosaurus


Tiergan Andrin Alenfar is a telepathy mentor at Foxfire, adoptive father of Wylie Endal, and a member of the Black Swan under the alias of Granite. He lives at Solreef as mentioned in Unlocked, and is a Telepath, reinforced by his career at Foxfire, mentioned earlier. After his best friend Prentice Endal was subjected to a memory break preformed by Quinlin Sonden and Alden Vacker, he took in the orphaned Wylie as his own, and resented the Vacker family for Alden's role in Prentice's condition. He's interacted with Sophie Foster as both Granite and Sir Tiergan.