When the old keeper forgot one latch, the 400-pound silverback reached through the steel

forms. Sometimes, when a new keeper grew impatient with an animal who would not trust quickly, I opened it to the early pages and showed them Tom’s old sketches, his careful notes, the repeated reminders that trust was not a command. I never showed them the last page unless they had stayed long enough to understand it.

Winston grew older. Silver spread continue reading …