Calling the Most Creative

So, for those of you guys that dont know, I am a writer. Lately I have been writing a book where the setting is loosely based on Peter Pan's Neverland, with more of a Once Upon a Time Neverland feel. Children are taken at a young age and brought underground where they spend their years trying to become an Advisor, to become young foorever and defeat the adults up above. All kids are brainwashed into thinking adults are evil and parents are cruel. The leader of this underground woorld is named Arius Alexander. Im asking for your guys's help in finding a great name for this underground "Neverland" as Im fresh out of ideas. Thank you! Tell me if you need more detail.

FOREVER LAND!!!! Lol, yeah, I'm just joking.

I didn't even see this topic. o.o Darn notifications, not doing their job of notifying me...

In any case, I will try to think of names for this if you still need one! ^.^ Have you ever read the Peter and the Starcatchers series? Because that series is amazing. xD

There are a few Peter Pan books i would sugest.
Try Peter Panzerfaust a ww2 take on the character.
Peter Pan a French grapnic novel depicting his origen.
Peter pan in Crimson the official sequel.

Also check the TV series from the 90s because it is buy far the best version... and its Hook is the best.

there are a few Post apocalyptic versions to be found on line to.

For names how about New Haven, Sanctuery or Citadel?