Crypt Demon

"Follow the light."

The Crypt Demon or Spider is an NPC in Dead Cells. She appears to be a scout or a simple guardian of the Forgotten Sepulcher, she advises the player to follow the light, as the major mechanic in the Forgotten Sepulcher is the killing darkness while the player is outside of the light. She is only found in the Forgotten Sepulcher.

Dialogue
The Spider has the following to say to The Beheaded.

"So this is the anomaly she's looking for..."

"You've come a long way down beneath the surface, Fallen One."

"Dark is the path you have chosen..."

"The light of the guardian monoliths will guide you."

"Behind you, that big LIGHT, just there!"