The X Factor — Bella Street

Book 2. The X Factor finds the Apocalypse Babes friends, along with a few other lost L.A. stragglers, ensconced in a compound that may or may not be
run by evil Soviet scientists. Whether it's due to Bolshevik beliefs or
a manipulating girlfriend, nightmares are on the loose and they want what's
left of Seffy after the zombie attack. To make matters worse, one of the stragglers develops an unwanted attraction for Sef, and insists it's more
than just UST à la Mulder and Scully.