Reviewed by Eric Z. (age 8)
My favorite character is Jack because because he is smart and brave. For example, he is smart when he tells Annie to cover her head with her swimming towel so she won't freeze. He is brave when he went into a cave with a great cave bear to find Annie. My favorite part is when Jack and Annie think that the great cave bear has woken up because they hear the great cave bear snore very loudly. I like the pictures because the pictures are realistic.
I hope you like this book and enjoy the others in the series. I recommend this book to readers who like adventures!