“It’s easy enough, Miss Flavia,” he’d said after my third try. “Just keep in mind the three T’s: torque, tension, and tenacity. Imagine you live inside the lock. Listen to your fingertips.”
“Where did you learn to do this?” I asked, marveling as the thing clicked open. It was laughably easy once you’d got the hang of it.
Alan Bradley, The Sweetness at the Bottom of the Pie