This past spring we began a series of queries with the Wisconsin Regional Writers' Association (WRWA) about Mary H. Zimmerman. Why, you’re undoubtedly asking? She’s someone John Bellairs met once while visiting Milwaukee for a friend’s wedding back in the early 1960s. John’s friend and the illustrator of his first three books, Marilyn Fitschen, was also on hand with her husband, Dale, and picks up the story from there: