Here's what Christian says the book is about.
"It's about four girls who are cousins that spend the summer at their grandmother's house. They are planning on planting the Callahan family flag on Little Gull Island. They start planning their strategy without telling their grandmother what they're up to.
"They eventually break it to her, and surprisingly, she's supportive of it. They're in a contest with Sloan Bicket, someone from another family who is trying to plant their family's flag on the island.
"They beat Sloan to the island and plant their flag, but when they're leaving Sloan comes in a motorboat against the tide, and pulls their flag down and plants her own. That's when things start to turn upside down."
What did Christian like best about the book?
"I liked the competition that went on between the Callahan and Bicket families. It was really intense. When the families would run into each other in the stores, they would sneer at each other. You could feel the tension."
Was there anything he didn't like about the book?
"I didn't like how they kept their plans a secret from their grandmother for so long. Why didn't they just tell her right away?"
So, how did Christian rate The Callahan Cousins: Summer Begins by Elizabeth Doyle Carey?
He gave it four and a half out of five flaming monkey heads.