It is a book that dives back into the past before surfacing breathlessly in the present…and then doing a cannonball back into the past again. This book is all over the place, requiring year markers the way Bond movies require location tags.
Yeah. In It, memory is a big deal.
The Losers all forget everything about Derry once It is vanquished the first time, and their collective memory isn't jogged until Mike calls them all back into battle. Part of the struggle they face in It is against the tide of forgetting: they need to remember how to best the Big Bad Clown before they can get him.
Questions About Memory and the Past
Why do the Losers forget everything about Derry?
How do the Losers help each other remember?
What is the relationship between It and the collective amnesia of Derry?
Chew on This
The Losers need to forget in order to move on with their lives.
The Losers' amnesia is what causes them to lead frustrated lives outside Derry.