User blog comment:Darkcloud1111/Camp Half-Blood Series General Discussion/@comment-24060784-20131026081640/@comment-3146930-20131026125337

I agree, I mean the first book of any series has to take large amounts of time to sort of explain how the world works and introduce you to it, so that the author doesn't have to spend a lot of time in the future explaining everything over again. In that respect, The Lightning Thief does its job as an introduction book. However The Sea of Monsters does seem very filler-ish, as it seems to take the attention away from Kronos and we get a main villain that has nothing to do with the Main Villain. I mean the entire time they are in the Sea of Monsters seems like filler, but everything before or after is pretty good. Most people consider the SoM to be the worst in the series.