The Blood Of Olympus

The demigods and their allies must defeat an army of giants in order to thwart Gaea's plans to have two of the demigods ... (more)

The demigods and their allies must defeat an army of giants in order to thwart Gaea's plans to have two of the demigods sacrificed in Athens, spilling the blood of Olympus that would help awaken her. (less)

The Greek and Roman demigods must simultaneously prevent the earth mother, Gaea, from waking and stop war from breaking ... (more)

The Greek and Roman demigods must simultaneously prevent the earth mother, Gaea, from waking and stop war from breaking out at Camp Half-Blood. (less)