In the small town of Moss Hill, customers of all kinds visit Carissa Shea's Seelie Tree Apothecary Shop. That includes tall and short, young and old, human and faerie. Being half-elf/half-human herself, Carissa personally knows and cares for them all. So, when a grumpy brownie, a type of house faerie, named Miss Morgan dies in her shop, Carissa is devastated. As she learns more about her customer's death, she realizes Miss Morgan might have been the only thing standing between the Seelie, faeries of light and goodness, and the Unseelie, faeries of darkness and evil. On top of it all, the Sidhe guard, protector of all fae residents, rule it a murder and name Carissa as a suspect! Now she must prove her innocence and find the real culprit before it's too late - not just for her but for all of Moss Hill.