Can anyone help me find this book please?

[Belisama]

I am trying to get dd to read for pleasure, without much luck. I remember a book from my childhood which really kickstarted my own reading. It was about two (or maybe three) children, siblings I think, who find a baby in their shed. They care for the baby until the parents come back. I can't remember anything else and it may not be suitable now anyway but would love to find it again. Anyone with any ideas?

[AndHarry]

Is it The Giant Baby by Allan Ahlberg?

[Belisama]

No, but that looks great for ds! It was for older children I think, sorry for the vagueness, I'm not going to find it without more info am I?

[AndHarry]

Hmm. Has she read Necklace of Raindrops?

[DeWe]

Could it be Three Girls and a Baby?

I was looking for that for years, and someone on here suggested that for me.

[Belisama]

No neither of those but thanks for the suggestions. The children think a doll has turned into the baby and I think the parents eventually come back.