Alipheese Fateburn XI + XII (Eleventh and Twelth) or Alicefeeze Fatalbern XI + XII is a fusion of two the former monster lords. They first appear in Monster Girl Quest: Paradox Part 1.
Kagetsumugi exhumed the corpses of Alice XI and Alice XII as part of her plan to create powerful allies for Black Alice. She found they were missing too many body parts, so she decided to stitch them together.
Alice XI + XII appear, along with the other Monster Lords and legendary monsters, during Kagetsumugi's presentation of her creations to Black Alice.