The Mark of Athena (Heroes of Olympus Book 3)

The third book in the Heroes of Olympus series follows seven demigods on a quest to find and close the Doors of Death. Annabeth is determined to protect Percy as they face new threats and challenges. The group must navigate dangerous landscapes and confront powerful enemies while dealing with a prophecy that could seal their fate. As they journey together, their bonds are tested, and they must rely on each other's strengths to succeed. This adventure combines mythology with modern challenges, placing the characters in high-stakes situations that will change their lives forever.