Tanya is currently working on the design for the Horrible Histories exhibition at the Imperial War Museum, due to open 29 July 2013. The exhibition is about spies in the Second World War and combines the distinctive voice of Horrible Histories with fascinating objects from the museum collection (think fake IDs, lethal stationery, suicide pills, trip wires and an Enigma machine). Here's a sneak preview of some illustration she's created.