It - Stephen King

To the children, the town was their whole world. To the adults, knowing better, Derry, Maine was just their home town: familiar, well-ordered for the most part. A good place to live.

It was the children who saw - and felt - what made Derry so horribly different. In the storm drains, in the sewers, IT lurked, taking on the shape of every nightmare, each one's deepest dread. Sometimes IT reached up, seizing, tearing, killing . . .

The adults, knowing better, knew nothing.