Stealing the Elf-King's Roses

From the back cover of the Warner first edition: "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 then 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 interdimensional war destroys all creation..."