Finden, Susan. Casper the commuting cat : the true story of the cat who rode the bus and stole our hearts, London : Simon & Schuster, 2010.

This true story is written by Susan Finden who was the devoted owner of Casper.  Finden was baffled as to the whereabouts of her cat Casper, as he kept disappearing during the day.  As it turned out, he would regularly take the No. 3 bus on journeys around Plymouth in Devon, delighting commuters and bus drivers with his friendly nature.  Casper became a worldwide celebrity and the mascot at the bus company whose buses he rode on.  When Casper was tragically killed by a car, messages of sympathy flooded in from around the world, proving that his story had captured the hearts of many people.

Casper the commuting cat : the true story of the cat who rode the bus and stole out hearts is on the bestseller list for:- The Times (London).