Rune: The Tale of the Winged Sorceress by Carlos Sánchez

With Dai missing, Chiri is desperately rallying her fellow adventurers on a quest to find him. But with the darkness creating a fearsome army of creatures and planning on total domination of the kingdom, finding her best friend is starting to feel impossible. With another dark herald hunting Chiri down, it’s going to take every drop of magic she can summon to protect the friends she has left – and find the one she’s lost.