Explore "Mr. Pottermack's Oversight" by R. Austin Freeman on Textopian. Read with annotations and highlights.
Mr. Pottermack inserted the small, thin key into the Yale lock of the gate and turned it while Thorndyke watched him with a faint smile.
"Admirable things, these Yale locks," the latter remarked as he followed his host in through the narrow gateway and cast a comprehensive glance round the walled garden, "so long as you don't lose the key. It is a hopeless job trying to pick one."