An artifact found by their parents—on the expedition from which they never returned—leads Jake and Kady to a strange world inhabited by a peculiar mix of long-lost civilizations, a world that may hold the key to their parents' disappearance.But even as they enter the gate to this extraordinary place, savage grackyls soar across the sky, diving to attack. Jake's new friends, the pretty Mayan girl Marika and the Roman Pindor, say the grackyls were created by an evil alchemist—the Skull King. And as Jake struggles to find a way home, it becomes obvious that what the Skull King wants most is Jake and Kady—dead or alive.

    If she knew who he was, she might act differently. But to her, Sid is just a reminder of a past she’d rather forget.Sid won’t leave Aspen alone, because she’s the one girl that might be able to help save him and the rest of the dragons.He hadn’t planned on falling love…