But 'Jupiter' has been dead for close to 50 years. While Tolkien was protective of his work and its integrity, I'm not entirely sure he would have wanted it to ossify entirely (as already quoted elsewhere: "I would draw some of the great tales in fullness, and leave many others only placed in the scheme, and sketched. The cycles should be linked to a majestic whole, and yet leave scope for other minds and hands, wielding paint and music and drama").