Happenstance Found by PW Catanese.

Happenstance awakens with no memory of his past at all.  Ragged and blindfolded, he can hear the enormous worms outside the room he is kept in.  When Lord Umber arrives to take him, Happenstance discovers that his eyes are very special.  Bright green and sparkling, they can see in the dark and see farther than normal human eyes.   Taken home with Lord Umber, after escaping a labyrinth filled with man-eating worms on a erupting volcanic island, Hap finds himself encountering one wonder after another.  But there is something coming after Hap, something hunting him, something that will not give up easily.

An eerie, often scary, always gripping romp of an adventure novel, this book keeps readers guessing and enthralled to the end.  Catanese is a master of hair-raising escapades which make the book nearly impossible to put down.  His characters can sometimes be a bit stiff and cardboard, but they can also surprise with their depth.  Hap is an intriguing lead character filled with questions and few answers but also engaging in his quest to understand the world he finds himself in. 

Get this in the hands of tweens looking for a wild ride of an adventure novel and you will have them clamoring for the next book in the series.  Appropriate for ages 11-14.