The Obliteratrix was the second disguise of Alice May .
She destroyed the Mystery Machine and said she had one purpuse: destroy Mystery Incorporated. The gang escaped. HP Hatecraft suspected she was Regina Wentworth , an author who hates him. Cassidy Williams saved the gang and unmaksed her.
- I am the Obliteratrix, and I have but one purpose; to destroy Mystery Incorporated!
- No, that's a secret that will die with all of you...tonight!
- Now, where were we?