Horrible Histories: Oxford by Terry Deary
It's history with the nasty bits left in. Want to know: What a liripoop is? Which potty professor liked to walk like a dinosaur? What's buried beneath the botanical gardens? Plot your path to the past with the frightful fold-out map of the city - take a punt past corpse-ridden Christchurch and go skeleon-spotting at the cruel and crumbling castle.