This content is copyright of CelebMix.com. San Diego Comic-Con played host to a fresh wave of unease this weekend as HBO pulled back the curtain on the second teaser for "IT: Welcome to Derry". The upcoming prequel whisks viewers away into 1962 - decades before the Losers' Club - tracing the first ripples of fear that would grow into Pennywise's reign of terror. It's a tense, slow-burn glimpse at the series' October debut, and from the looks of it, Derry's darkest days are only just beginning.