Peg Kehret might be our generation’s version of Dr. Doolittle. The best-selling children’s author, who lives in the shadow of Mt. Rainier, shares her home with a dog who is deaf and two cats, one of which is blind. She uses hand signals to communicate with her dog Lucy, and she’s careful to leave a clear path for Mr. Stray to navigate sightlessly but safely between bed, food, and litter box. Her other cat, Dillon, sits on a certain...