It is the only surviving fragment of a lost medieval manuscript telling the tale of Merlin and the early heroic years of King Arthur's court. In it, the magician becomes a blind harpist who later vanishes into thin air. He will then reappear as a balding child who issues edicts to King Arthur wearing no underwear. The shape-shifting Merlin – whose powers apparently stem from being the son of a woman impregnated by the devil – asks to bear Arthur's standard (a flag bearing his coat of arms) on the battlefield. The king agrees – a good decision it turns out – for Merlin is destined to turn up with a handy secret weapon: a magic, fire-breathing dragon.
The way they did this is actually incredibly cool. They used equipment from the zoology department of the University of Cambridge. This was so accurate they even got the annotations on the side. They also made a 3D-model of both the manuscript and the binding.