A Deadly Yarn is a cozy craft mystery book written by Maggie Sefton. The story follows Kelly Flynn, a young woman who inherits her aunt's yarn shop in Colorado. When a fellow knitter is found dead in the shop, Kelly becomes determined to solve the murder and protect her aunt's legacy. With the help of her knitting circle and her amateur sleuthing skills, Kelly unravels a web of secrets, knitting patterns, and hidden motives. This book combines the cozy atmosphere of a small-town setting with the excitement of a murder mystery, making it a must-read for craft and mystery enthusiasts.