this was a good read, albeit i did find the amount of time spent on the main battle to be a bit much. it felt repetitive since there was a lot of back and forth where it was a lot of fighting with Percy being the main focus of it all and not a whole lot else. i think having more build up for a final battle would have been better, rather than have ~50% of the book be battle scenes. 

i liked that the ending tied together everything and even left a bit there for potential continuity in a later book. 

overall enjoyable ending to a beloved childhood series.