While casting Xaden Riorson for Fourth Wing's show is important as he is the main love interest, casting Dain will be equally ...

Sgaeyl: She's a blue daggertail dragon, mated to Tairn and bonded to Xaden. Dain Aetos: Violet's childhood best friend, although they've grown slightly apart as adults. The pair had a brief ...

Violet soon learns to use her wits and courage ... in quite the tense love triangle between childhood best friend Dain Aetos and Xaden Riorson, the only son of her family’s sworn, fallen enemy.