This is another Percy Jackson book. Artemis the Goddess of the hunt has been kidnapped while hunting the trail of a monster that could destroy Olympus. Percy, Annabeth, and Grover and others are left to find Artemis and kill this monster. They need to do both before the winter solstice. They need to get Artemis back so soon because she is the glue that holds the counsel of gods together. I like the book because it makes you laugh and you are sad at some parts. But in the end there is always another mystery unfolding so you are in suspense in till you can read the next book.
Bottom line I recommend it. Like all the other Percy Jackson books there are fights and main characters do die.