Reply #2: Here's a book I read, forgot the name of, was told the name of, and forgot [View All]

[BurtWorm]

again.

It's a children's book, written by an English author. It's about a group of children who live in the country who discover a magic stone--that might even be the name of the book, by the way--or a pit of some kind that turns art into life. The thing I remember most about it is a scene in which the children let loose a cheetah or leopard woven into a tapestry into the English countryside.