Wheels of Fire — Mercedes Lackey; Mark Shepherd

There are elves out there.

But they're the good guys. In an age where plastics and superlight metals are replacing "cold iron" they are able to come out once more and work their magic on humans. And the humans they work most on are kids--hurt, neglected, abused children.

The bad guys: Those who use children for their own ends. When young Jamie Case is kidnapped by his divorced father, he becomes the prisoner of a radical cult. His mother gave up job and home to search for him--but now she's running out of resources; the only way she'll ever find her child is with the uncanny help of a fun-loving, hard-driving elf....