Beware! This is #20 not 30. I already had #20 so this is mislabled. Having said that, my son did enjoy this one when he read it a few months ago. The reading level works pretty well for the 2nd through 4th grade set and it's not scary enough to give nightmares. Like the rest of the set, this book has pictures every 5 -10 pages and the story moves along quickly enough to keep the interest of an active little boy.