Quotation from: Secret Adversary

Written by: Agatha Christie

"Let me go, then," cried the other. "I have done what you asked.
Why do you still keep me with you?"

"Not for the pleasure of your company. I guess you can get right
off now if you want to. I thought you'd rather I tooled you back
to London."

"You may never reach London," snarled the other. "Let me go here
and now."