After the two of them were brought into the realm of the Shadow Creatures (also referred as 'Them' by Maxwell), it is believed that Charlie was transformed to have the demonic traits and personality to become the night monster. In the lore, Charlie was previously Maxwell's female assistant for his magic shows. Most characters can survive a single attack, even without armor.
The attacks will continue every 5 to 11 seconds until the character finds or creates a light source in order to see. The first attack will happen 5 to 10 seconds after the character enters complete darkness, with the character being stalked when 60% to 20% percent of this time is left until the attack. Moments later, a slashing sound is heard and the character will take 100 damage and 20 Sanity loss.
When being stalked, the character will become alarmed, exclaiming things such as 'What was that?', followed by a loud 'whoosh' to signal her approach.
(Characters will state when they are vulnerable, e.g.
She only attacks when the character is in complete darkness, unable to see. ”Ĭharlie, otherwise known as the Darkness or the Night Monster, is a hostile damage source unseen to the player in-game.