The Lucy Wilson Mysteries: The Pennyworth Recursion 

Lucy and Hobo embark on an olde-worlde coach trip to Bledoe. It's clearly a trap, but with tickets priced at just 1p, how can they resist? Or more accurately, how can Hobo resist? Lucy isn't convinced the price is worth the ride…

On a musty old coach packed with OAPs, they find solace in Pennyworth, a virtual, portable assistant created by Hobo. However, their luck takes a turn when Pennyworth calculates their chances of reaching Bledoe are… zero.

Robotic Yetis appear from nowhere – one in a cowboy hat, another wearing a football kit, and one half the size of the others! Despite their differences, they all share one name: Pennyworth.

The Lucy Wilson Mysteries is a Lethbridge-Stewart spin-off adventure and features licensed characters created for Doctor Who by Mervyn Haisman and Henry Lincoln.