Vilia

The Vilia are water spirits of the brooks and streams. They appear to be benevolent in nature and they have healing powers.

History
A group of Vilia appeared to Lancelot at a river while he was trying to find a place to shelter him and Merlin from Dorocha attacks. They took the form of water bubbles floating in the air, and one of them informed the knight that his and Merlin's help would be needed at the Isle of the Blessed. They magically healed Merlin and promised Lancelot they would protect the two from the Dorocha during the night.

Appearances
Series 4:
 * The Darkest Hour, part 2