The Letter The Witch and the Ring is an early John Bellairs book, and the first adventure starring Mrs. Zimmerman and Rose Rita.
Rose Rita is disappointed that she won't be able to be with her friend Lewis this summer. However, her neighbor (and local witch) Mrs. Zimmerman asks Rose Rita to join her in the Upper Peninsula where she will be staying a a farm house her cousin left her before he died. There is also a mysterious magical ring involved-but when Rose Rita and Mrs. Zimmerman arrive at the farm house, the ring is gone! Could other forces be at work? And are they deeper and darker than either of our heroines could imagine?
This was a good book, although it did read like an early Bellairs effort and the characters weren't as fine tuned as I remember them being in other books. I also sorely missed the Edward Gorey illustrations. The story was good, although it didn't have me as scared out of my wits as some of his others.