February-COSMIC HORROR-Dead Take the A Train by Cassandra Khaw & Richard Kadrey

Julie Crews is a coked-up, burnt-out thirty-something who packs a lot of magic into her small body. She’s trying to establish herself as a major Psychic Operative in the NYC magic scene, and she’ll work the most gruesome gigs to claw her way to the top.
Desperate to break the dead-end grind, Julie summons a guardian angel for a quick career boost. But when her power grab accidentally releases an elder god hellbent on the annihilation of our galaxy, the body count rises rapidly.