San Francisco in trouble - L.A. elves to the rescue!
Elves in L.A.? Not so hard to believe. But when things get a little too hot in L.A. where do they go? Up north to San Francisco. All is well there with our elf-lord, his human bard companion and the mage who brought them all together - until it turns out that San Francisco is doomed to fall off the face of the continent unless our bard can summon the Nightflyers, the soul-devouring shadow creatures from the dreaming world - creatures no one on Earth could possibly control.
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