Secret of Tate's Beach and Adventure of the Seven Keyholes by Augusta Seaman

In The Secret of Tate's Beach, Merwin is recovering from a bad illness, so she and her father stay at Tate's Beach in Mr. Tate's inn.  Mr. Tate's granddaughter is about the same age as Merwin, but at first, Peggy hides from her.  Peggy has had little education, and the one time she attended school, the other girls made fun of her.

Gradually, Merwin and Peggy become friendly, and Peggy shares her secret.  Peggy has a small cache of treasures she has found on the beach, and she keeps them hidden under an old figurehead.  The girls soon realize that Peggy's treasures may hold the key to finding out the truth about Peggy's past.

This is an excellent book with a really good mystery.  The book is just like some of the very best vintage series books.  Unfortunately, this is one of the more scarce of Augusta Seaman's books.

In The Adventure of the Seven Keyholes, Barbara's grandfather has died, and he left her an old brass key.  The will states that the key fits the first of seven keyholes.  To find all of the remaining keyholes, Barbara will need to follow clues that will be revealed behind each keyhole.  The clues are not easy to decode, but Barbara perseveres and finds that her grandfather willed her something more than just a brass key.

This book is aimed at a slightly younger audience than the rest of Augusta Seaman's books.  The book is a bit shorter than Seaman's other books, with just 150 pages and less text printed on each page.  The book is good, but I did not enjoy it as much as the average Seaman book.