My son who will be starting 2nd grade in the fall was not a big reader until he discovered the Captain Underpants series about a year ago. He read the books voraciously and loves to talk about the characters and the plots. I think he is attracted by all the weirdness, the inventions, the dinosaurs and bionic hamsters and space aliens.
(I find the books very enjoyable myself, for what they are. I can’t be the only adult fan here, can I?)
He has read all the books in this series multiple times already. More are on the way but in the meantime I would like to try to get him to expand his horizons some. A series we discovered recently that has definite potential is The Time Warp Trio books. I like it because it is actually somewhat educational and is written at a higher reading level than Captain Underpants, in the sense that it is challenging for him. He appreciates the humor and again the time travel and other fantastical elements.
Does anyone know of other series similar in style and themes to Captain Underpants, at the same or harder reading level? Thanks in advance.