User blog comment:Dalek rex/Sally acorn's new redesign is a failure/@comment-4040842-20130505011416/@comment-4040842-20130508123252

He did had a daughter named mecha. But archie told to writers to get rid of her, so they made ADAM frame is sister and Eggman told Mecha to self-destruct and she did. And Eggman erased all of her data so she won't be revived ever again.