3.5 stars -- My biggest mistake in reading this was in reading it right after a Henry Huggins book. Peggy Parish of Amelia Bedelia fame is obviously a beloved author in her own right, but by reading one of her lesser known (at least for me) mysteries right after a Beverly Cleary story, I made perhaps unfair comparisons. Personally, I prefer Cleary's writing style. Many times I felt that Parish's words did not flow as readily from sentence to sentence or scene to scene. Also, while Cleary's Henry is not perfect, he attempts to correct his wrongs, which is character building. I do not feel that Parish wanted a similar result for her own characters. Disregarding these complaints, though, I still enjoyed this mystery.
Jed, Bill, & Liza are siblings who have returned to their grandparents' house for the summer. They obviously love their time there as much as their grandparents love having them. The focus of this story is a picture that has hung over the fireplace for five generations. In four panels, the picture contains hints to the locations of four clues that will lead to a treasure of American Indian artifacts. This treasure was hidden by the siblings' great-great grandfather before he rode off to fight in the Civil War. When he never returned, the treasure was lost. The story includes the background of the Indian artifacts and how the family got them, as well as the fact that the majority of them are now in a museum. The panels in the picture are drawings of an Indian bonnet, a small Indian clay pot, an old key with an unusual hook on the end, and a question mark. The siblings decide to try to solve the mystery when a lucky accident leads them to the first official clue.
I really enjoyed the puzzles that Parish includes as part of the mystery, and I liked that the siblings work together to solve it. I did not like the actions of one sibling in particular, Bill. He is disrespectful on more than one occasion to other characters and to history. While his siblings protest, there are no consequences nor adult intervention, which I was not a fan of. This is the first in a six-book mystery series involving the same characters. The second is in my library. I will be interested to see if these characters grow like Henry Huggins.