"The Sea of Monnsters", is a truly amazing book written by the author of  "The Lightning Thief", Rick Riordan. It is in Percy's point of view. In this book of the series, "Percy Jackson and the Olympians", Thalia's tree was dying, only because Luke poisoned it. As he said in the last book, Luke was going to bring Kronos back to life. The only thing that could fix both was the Golden Fleece. The Golden Fleece could heal anything. So as the journey begins, Percy, Annabeth, and Grover try to get the Fleece, while Luke is trying to get it to bring Kronos back to life.