It: Welcome to Derry episode 6 just gave us an excellent Pennywise lore dump
via polygon.com
Short excerpt below. Read at the original source.
Wedged between two rather tender moments involving young love with our teen cast is a massive lore drop in this week’s installment of It: Welcome to Derry, which touches on the origins of the newly revealed Ingird Kersh (Madeleine Stowe) and Pennywise (Bill Skarsgård), who is in full effect this episode.