The Mabinogion, The Marriage of Heaven and Hell, The Book of the Law and Ecclesiastes Posted byJoel 26th November 201326th December 2013 The Mabinogion. The Marriage of Heaven and Hell. The Book of the Law. Ecclesiastes. All via Cicada 3301. Which reminds me of the Quizmasters in “The Long Earth” novel by Pratchett and Baxter.