And Along Came Spider (Spider #1)
J.R. Wright, Mia Manns

When it comes time for Martina to change up her life, she abruptly quits her job as a night nurse at a small local hospital, climbs into her old car, and leaves home. From all outward appearances, Martina Spalding is an attractive young lady looking for love and a new life. But underneath is a spitfire with a pistol she's not afraid to use, which surprises even her, when she discovers her best friends life is in danger. What transpires thereafter is a thrilling and suspenseful ride to unmask the killer, with a few wrong turns and bumps along the way. During the transformational journey that ensues, Martina earns her nickname in earnest: SPIDER.