this was the first book that I read by Brendan DuBois and I loved it. The possibility that this could happen was fascinating. I have since read several of his books all with possible alternatives.Great topics for discussions! I can't wait to read the next book.
I found this book contained too many simple puzzles which did not tax my brain especially after completing book 1. Perhaps on the outer cover it could have given the range of squares eg between 4 and 6. I would not buy a book in the future with any 4 squares as they are much too simple,I need more of a challenge and would have prefered 7 and 8 squares.