Something strange in my house

This morning something really weird happened. Gran wasn't in her bed for my morning snuggle! She wasn't there to get my breakfast or feed the silly chickens. Instead, another Gran - Nan Anne, Freddie's Nan appeared in my house - without Freddie, thank goodness. Nan Anne gave Minky and me some food, she even gave me a pat. She's really very nice, even if she does have a dog. But where is Gran! This is most mysterious, it's never happened before. Where is she?