I’m looking for a children’s book from the 1970s which was a large hard cover book. It was about a boy (I think) who kept finding magical passageways in a house as it seemed as if the house kept growing and getting magically bigger. Would love the title.
Was it The House with a Clock in it’s Walls… or by that author?
It’s not from the ‘70s, but Tuesdays at the Castle by Jessica Day George concerns a castle that changes and grows.