Hello,

I'm a girl from Holland, and I'm searching for a pop-up book my parents used to have.
They bought it in England, so I pressume it was an english author, though i'm not sure.

The book told about a boy who was going a day out with his family, I think it was somewhere in a park.
At every page, one of his family members got taked away/kidnapped, by some sort of monster.
At the last page, he's all alone by some big house I think, but he wasn't really sad about it.

The book must be written in the 80's/early 90's, or older
Does anyone know what the name of this book is?
Please inform me!

with kind regards,
Bregtje