evidence: This may be the world's largest ever gathering of Satanists - and it's about to begin at a Marriott hotel in downtown Boston. [...] The event takes up the whole fourth floor of the hotel. The Satanists fill it with androgynous goth chic, flamboyant robes, hand-painted horns, diabolical tattoos, and high-maintenance moustache choices. [...] Opponents say it's frightening children, but TST says its content is demon-free. They have a kids' song - My Pal Satan - with a bopping animated goat, and the lines: "Satan's not an evil guy, he wants you to learn and question why. He wants you to have fun and be yourself - and by the way there is no hell."