Peter Cahill functioned as his wife’s devoted partner for forty-five years, and as her caregiver for thirty of those years. Andrea Cahill was a fighter, battling a rare disease known as neurofibromatosis. The couple formed a foundation to help search for a cure and treatments while Andrea was alive. After she passed, Peter set out to write a memoir entitled “Silent Determination: One Woman’s Battle to Survive and Thrive with a Rare brain Disease.” It’s a story told by a valiant caregiver, a tale of pain, challenge, humor and hope.