Instruct: Classify the given review into positive or negative sentiment.
Query: The most riveting modern historical fiction out there!

Part Agatha Christie, part Eloise McGraw ... this book totally blew me away! Mary Ray is terrific, practically creating a whole new genre of books - children's historical mysteries. The plot flows beautifully from one catastrophic event to another, creating a tale of incredible skill and baffling turns.Not much has been written in the Ancient-Roman category anyway, and this book is made even more unique by its point of view - that of a slave. It exposes the so-called 'glamour' of Rome to be merely a circle of cruelty and struggle. This book is not for the very young, but discerning readers 12 & up will find this book absolutely wonderful. I can't endorse it too strongly!