In Too Deep — Valerie Sherrard

When Shelby Belgarden's peaceful hometown of Little River is shaken by a series of robberies, suspicion falls on Amber Chapman, a new girl in town who has alienated others with her standoffish attitude. Shelby's own dislike of the newcomer is fed by jealousy as she begins to suspect a relationship growing between Amber and Greg Taylor.

But as evidence against Amber mounts, leading to her eventual arrest, new clues cause Shelby to question her own judgement. Shelby races against time to free her, and soon realizes that in order to do so, she must uncover a dark secret known only to the thief.