Anyway, in here, Nimue is the handmaiden of the prime Lady of the Lake who raised Lancelot. However, the Lady is a tad worried about Lancelot, so she sends Nimue to seduce him. When Nimue fails (because he's in love with Guenivere) she's distraught until she finds Merlin who cheers her up with rainbows. They become lovers and eventually Nimue runs away with him when he leaves to a perfect world after being snippy to Guenivere, running around doing weird things, etc.
Copyright (Chessboard): 1983
Copyright (Guenivere):
1981