What is the threat that looms over hester pearl and dimmesdale if they reveal chillingworth's true identity?

In reality, Hester debilitates to uncover her better half's personality. Chillingworth doesn't need anybody to know his identity. In the event that individuals discover his character, he'll never again have the capacity to hold Pearl's introduction to the world over Dimmesdale and Hester. Chillingworth needs to control the not presentation.