It opens with “Fynn is a very small dog with a very big job,” walks through the big house and the residents he loves — Miss Norma’s lap, Mr. Earl’s stories, Miss Pearl’s long afternoon — and names what makes the book special: the gentle handling of aging and goodbyes, the blue bone tag find-it game, the real Fynn photos in the back, and your voice as the nurse and administrator who works beside him. It closes on “Some helpers are made small on purpose.”