This is a great non stop adventure book! It also mixes a lot of fun facts and pictures about Ireland so there is some secret learning that can be had along the way. The chapters alternate between the boys, Wyatt the scientist, and Gannon the one more interested in culture, history and humanities, so you get a well rounded look at the subject. But both boys love travel, and adventure, but trouble seems to follow them everywhere they go. This book will keep you on your toes with the insane mystery, action, thugs, being lost in the forest, falconry (Oscar is the coolest), and all the great information on Ireland that will make you wish you were there yourself. The book is awesome for anyone who likes nonstop action, and anyone who is interested in travel to foreign places. This is a great book and series for any middle grader.