Medusa

Medusa is Papa Achalla's wife in the Amsterville roleplay mod. Papa Acachalla constantly makes phone calls to Medusa about Sally, who was with him at the time. One phonecall was about how Sally probaly had brain damage, Sally commented on the call, but Papa Acachalla lied to her and said that she has "bran cereal". Later, Papa Acahalla divorced Medusa, and Medusa possibly "gave" Sally to Papa Acachalla. Its not seen, but she is never seen or mentioned again.

Sally and Acachalla
Throughout the Amsterville video, Papa Acachalla makes phonecalls to Medusa. In one call, it is implied that Medusa is Sally's real daughter, meaning that perhaps Sally is Papa Acachala's and Medusa's real, (and only), child.