OHGrandma,
I smiled when I read your post--That series is big around our neck of the woods too (in fact, I ordered two copies of the final book in order to avert bloodshed in my house over who got to read it first). If he enjoyed that series and is looking for another, I strongly recommend the Gregor series by Suzanne Collins (first book: Gregor the Overlander). It is not on the same theme, but has been a huge hit with every Percy Jackson fan I know. For anyone else reading, this is a series that is probably too intense for 6 and 7 year olds. The first couple of books are fine, but some of the themes/images are disturbing in the final books. My DD was 8 when we read them and was really upset by a scene in the 4th book. I plan to hold my DS off until he is at least 8, because once he starts the series, he'll want to finish it
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Tam
