Think of a Number: Penguin Modern Classics - Crime & Espionage

Flemming Borck is the ideal bank teller: quiet, meticulous, perhaps a little dull. He even stays late to tidy up, which is how he finds the note: THE THING IN MY POCKET IS A REVOLVER. HAND OVER THE CASH YOU'VE GOT IMMEDIATELY.

This draft of a stick-up, discarded at the counter, is Borck's warning that the Father Christmas outside the shopping centre is not all that he seems. So Borck hatches a plan. But he soon finds out that being quiet and meticulous won't save him from the messy and dangerous situation he's got himself into...