Zarcest

Zarcest is one of the more unusual ships, pairing up Zarina from The Pirate Fairy with an alternate version of himself. Although realtively rare, and frowned upon in the same way as Oncest, Hiccest, Elsacest, Mericest, Rapuncest, Tadacest and Vancest, this pairing still has a following within the fandom.

Popular AUs

 * Fairies AU
 * Pirate AU
 * Modern AU

Fanfiction
Note: Please add only ones that are part of the RotBTD fandom