house of hades
by Rick Roirdan
Percy and Annabeth have fallen into tarterus and they are trying to find a way out. While they arre in there their friends are trying to rescue them. But they have ran into some problems along the way like these mountain goda that are damage the ship.
why you should read it
if you like action books, this is the one for you. This book has many different things going on like when there ship gets damaged and they could dye. but you will have to find out. And will they save percy and annabeth.