Bride of Death (Marla Mason, #7)

Do better. That's a hell of a thing to demand of yourself. Marla Mason has been a mercenary, chief sorcerer and protector of an entire city, and an occult detective, and now she's a goddess of Death... but only part-time. She gets to spend six months a year living as a mortal woman on Earth, and she's decided to devote those months to hunting monsters for fun and personal redemption. Armed with axe and dagger, with the living severed head of her worst enemy in a birdcage for a traveling companion, she sets off by motorcycle into the American Southwest on a journey of self-discovery and other-destruction. Time to ride.