My DS (who just finished third grade) has LOVED these books! He is finishing the fifth and final one. He has gotten alot out of them- I guess they are exciting and have alot of Greek mythology in them, which he has really enjoyed. He was telling me very specific details about it.
What would he like next? Any suggestions? He loves reading series books. Another mythology-type would be great. He's sensitive so nothing too scary (he just moped for awhile because our neighbor told him to stop throwing the noodle at their grandchild in the pool, LOL).