The More the Terrier — Linda O. Johnston

Shelter manager Lauren Vancouver has taught herself a new trick: sleuthing. Now she has a chance to hone her skills, as animal hoarding leads to one less human life...

When Lauren finds out that her old mentor, Mamie Spelling, is an animal hoarder, no one is more shocked, and she jumps in to help rehome the cramped critters. But Mamie's troubles don't end there. She's accused of murder when the CEO of a pet shelter network is found dead. The aggressive businesswoman was bullying Mamie to join her organization by threatening to expose her hoarding, but that was before Lauren took control of the situation. Now, Lauren's dogged determination to clear her former friend of murder may put a killer on her tail...