This is a great book for the 10 year old audience it was intended for. My son enjoyed it immensely. Cute adventure with a dragon, elves, dwarves, and magic. 
 For the adult however, this book was ridiculous. Spoilers abound ahead. 
 Alex basically single-handedly completes this adventure. He learns he's a wizard of unsurpassed ability, takes out a troll, and bandits, and wraiths, and the freaking dragon all by himself... completely untrained, and on his first ever adventure, to boot. An amazing magical sword basically falls in his lap, which he wields expertly with no training. He takes to magic quickly and completes in days what takes others weeks. He learns the elven language in a couple of days, which is explained away by him finding it magically coming naturally to him. The rest of the company are merely tag-alongs to Alex the Great doing everything and saving everybody. Seriously, the undying elf not knowing what herb Alex used for healing ??? 
 Absolutely ridiculous. I'm glad Diego liked it, though. 
 I recommend this book to middle grade children only who are looking for a fun fluff read.