Deborah’s answer to “Why did no one ever look for Ciara/Aimee when she was taken as a child?” > Likes and Comments

I don't think anyone knew about the original Aimee dying, that is why she stole Kira, even Maggie's red haired brother they would meet in the pub, didn't know she had been killed and thought Kira was her. Probably the criminals that were always trying to rob them actually killed her