A Deadly Yarn is a cozy craft mystery book written by Maggie Sefton. The story follows Kelly Flynn, a young woman who moves to Colorado and becomes involved in a murder investigation. When a fellow knitter is found dead, Kelly becomes determined to find the killer. With her knitting skills and curiosity, she uncovers a web of secrets and motives within her new community. Along the way, Kelly also finds solace and friendship in her knitting group. This book offers a perfect blend of mystery, knitting tips, and a picturesque Colorado setting that will transport readers into a cozy world of crafts and crime.