R. J Anderson

"How do you fight fire without fire? When a freak storm uncovers the entrance to a mysterious underground chamber, Ivy and Martin expect to find treasure. But what they discover is even more valuable: a barrow full of sleeping spriggans, magically preserved for centuries. With the vengeful piskey queen Betony determined to capture Ivy and her followers, the secret hideaway could be key to both their peoples' survival. But the piskeys and spriggans...

As a piskey girl born without wings and raised underground, Ivy yearns for flight almost as much as she misses her long-lost mother. But the world outside the Delve is full of danger, and her dreams seem hopeless until she meets a mysterious faery who makes her an enticing offer: If Ivy helps him escape the Delve's dungeon, he'll teach her how to fly. Freeing Richard could cost Ivy her reputation, perhaps even her life. But when her fellow piskeys...