The Vampire Chronicles of Jack Holladay: Silver Moon

After discovering the supernatural does indeed exist, and having survived several near-death experiences, Jack is back! With his were-panther girlfriend at his side, he soon learns that a savage pack of werewolves plan to slaughter her entire Pride.
And, as if things couldn't get worse, a vicious murderer is on the loose, and after being enlisted - or drafted - by female Detective Oswald, it is up to Jack and Selene to solve the case and bring the murderer to justice.