This one was extrememly short, only 103 pages. I read it awhile ago, so had to go look at Amazon reviews to refresh myself.
This one did not get terribly great reviews at Amazon. Most were in the 1 star category. I thought they were a bit harsh, as I enjoyed this one. It was indeed a quick and easy read, funny at times.
Basically it was the narration of a day trip to the beach with two kids and their mom and her sister. This one reminded me of day trips I've had to the beach as a child.
I give it 3/5 grade, for it's shortness.