There are elves out there...
But they are the good guys. In an age where plastics and superlight metals are replacing "cold iron" the 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.
Mercedes Ritchie Lackey (born 1950) is an American writer of fantasy novels. Many of her novels and trilogies are interlinked and set in the world of Velgarth, mostly in and around the country of Valdemar. Her Valdemar novels form a complex tapestry of interaction between human and non-human protagonists with many different cultures and social mores.
Her other main world is one much like our own, but it includes clandestine populations of elves, mages, vampires, and other mythical beings. The Bedlam's Bard books describe a young man with the power to work magic through music; the SERRAted Edge books are about racecar driving elves; and the Diana Tregarde thrillers center on a Wiccan who combats evil.
She has also