Merlin falls ill in the latest instalment of BBC One's top fantasy drama, but this is no case of the sniffles - the boy wizard has been struck down by a mysterious magical sickness!

War memorial Robert de Boron’s Merlin credits the wizard with with building the imposing stone circle at Stonehenge to honor fallen warriors. Maurizo Rellini/Fototeca 9x12.

We've got our own thoughts on how Merlin will draw to a close - share your best theories below! What to Read Next The final episode of Merlin airs on December 24 at 8.15pm.

As for who can beat whom … Merlin’s magic was not offensive, so he’s largely out of the picture. Gandalf would have approached beating Voldemort quite differently; he would have aroused both ...

Merlin, the most famous fictional wizard of them all, was actually a 6th-century warrior king living in northern England, according to a new biography.

Thanks to the BBC's Merlin series a whole new generation know the story of Merlin the Welsh wizard. Intriguingly, some of the earliest sources depict him not as a Welsh sorcerer but as a wild man ...