George and Harold haven't changed much since the last Captain Underpants adventure: they still wish school could be just a little more lively. When their truly evil teacher Ms. Ribble announces she will be retiring and forces the class to write identical sappy cards to mark the occasion, the boys have a better idea: they'll write one of their comic books featuring the heroic Captain Underpants instead, and demonstrate their amazing creativity.
In the comic strip, Ms. Ribble becomes the Wedgie Woman. She wreaks havoc by bestowing extremely painful wedgies on her enemies until she is undone by the valiant but tubby Captain Underpants. Needless to say, Ms. Ribble does not appreciate the boys' creative efforts and they're sent off to the principal's office once more.
But the adventure certainly doesn't end there. It just so happens that in the office, the school secretary has left an unfinished draft the school's schedule on her computer. The opportunity to liven things up by rearranging the schedule proves irresistible and the boys make a few minor changes while they wait to be reprimanded. They also talk Mr. Krupp, the principal, into signing a blank card. The schedule changes and the card come together (as do Mr. Krupp and Ms. Ribble). Before they know what's happened, Mr. Krupp and Ms. Ribble are engaged, despite their objections. The wedding is a disaster and suddenly The Wedgie Woman, who started out as a figment of George and Harold's collective imagination, becomes real. Will Captain Underpants be able to vanquish his foe once again? You'll just have to read the book to find out!
--- Reviewed by Cassia Van Arsdale