I read this book in maybe 1978. Black and white Illustrations with hidden objects throughout, like a giraffe under a man’s hat, etc. A boy runs away from home and befriends a man who sells donuts from a cart on the street. The donut salesman falls in love with a woman who has a pretzel cart and this makes the runaway boy jealous. Then a bull escapes from a pet store and runs into a giant tank of coffee, which the boy is sure to drown in as he gets trapped in a basement filling with coffee. The donut salesman saves the boy by dumping all his donuts in the coffee. The boys goes home at the end.

I read this book probably between 1957 and 1964. The plot is about a boy who finds a dinosaur egg which hatches and is a triceratops which he keeps as a pet. The title could be something like “The [something] Egg” (?) or maybe not.
Thanks!

I just read about your bookstore and the Book Stumper in today’s New York Times. Amazing! And I have a book: written perhaps in the 1970s or early 1980s, it concerned two kids, an old house, and a crystal or other glass ball on a pedestal in the yard of an old house, and the kids used transcendental meditation to perhaps travel into the ball, maybe solve a crime or something.