Koelle, Heather: - Heather Koelle is a late bloomer. As a retired music therapist, writing was only a hobby. But since 2018 when she joined The Writers Guild of Delco, writing has become her primary passion. In addition to her first novel, Invisible Thread, published in 2021, she now adds a collection of short stories written over six years.Heather lives with her husband of 57 years and has three children, and five grandchildren. She lives in Wallingford, PA. When not writing, Heather is a voracious reader, and is a member of two writer's groups and a poetry group. She swims at least three times a week and is adding yoga to her exercise routine.