Stealing the Elf-King's Roses

WAR AGAINST THE ELF-KING
"Lee!" Gelert barked, and threw himself from the rock spine, straight at Lee and the Elf-King. They tumbled over the stones, Gelert coming down on top of them; and blaster fire from the silent craft that had come down on them blew the top of the spire to chips and stinging splinters. Lee reached out to grab the Elf-King's arm, pulling him after her, but something held her still. He was looking at the Craft as it swung around for another pass, simply looking at it—
Every part of Lee prickled intolerably, her eyes burned—and lightning came streaking down out of the tattered sky to strike the craft full on. Deafened, blinded, she was thrown back; it was some moments before her eyes cleared enough of the afterimage of the lightning to show her surroundings again.
"Nasty," Lee said softly. "Were you expecting a coup d'etat?" "For a century or so now," the Elf-King said. -from STEALING THE ELF-KINGS ROSES

The highly acclaimed creator of many brilliantly realized worlds in fantasy and science fiction, New York Times bestselling author Diane Duane now presents a startlingly original new adventure—a gripping mystery that spans seven alternate universes...

THE CASE OF THE ELF KILLERS

Los Angeles prosecutor, sleuth, and forensic lanthanomancer Lee Enfield relies on her mystic Sight to gather the truth from suspects and crime scenes. But when she investigates the shooting death of an Alfen media exec, her powers, like those of her fayhound partner Gelert, uncover only deeper mysteries. The murder is revealed to be part of a deadly plot against Elves, and mounting evidence implicates the highest members of the Alfheim government...including the Elf-King himself. Now, to determine the truth, Lee and Gelert must secretly infiltrate Alfheim, a universe forbidden to mortals—and crack the case before an inter-dimensional war destroys all creation...