Who took Sally to the underworld in the Lightning Thief?

In "The Lightning Thief," Sally Jackson is taken to the Underworld by Hades' minions, specifically a group of monstrous creatures known as the Furies. They abduct her while she is in a vulnerable state, using her as leverage against her son, Percy Jackson. Hades aims to manipulate Percy into returning his stolen helm of darkness by holding Sally captive.