Ok, a different thread made me think of posting this here... This was one of my favorite books as a kid and NOBODY has any idea what its title is!
I _think_ it was a chapter book, but it had a few pictures (I think... I remember a picture of a cabin on the lake).
It was about this brother and sister. Usually they went to their grandmother's cabin at the lake for the summer but for reasons I don't remember, they couldn't go one year.
So, they ran away to the lake anyway. I remember they rode a bus to get there. Once there, they had to hide in the woods 'cuz people knew they weren't supposed to be there. So, they bought camping supplies. I remember they warmed a can of beans on the campfire.
I do think another kid, a boy who they knew, found them. I'm sure stuff happened but I don't remember.
Does this sound even vaguely familiar to anyone?