Annabeth strode off the ship, stepping nervously onto the gorund. Annabeth didn't know if Percy had remembered her or not. What if he met someone else, after all it has been 8 months, she thought worried. She felt Jason stand beside her he was tapping his foot anxiously.
Annabeth scanned the crowd looking for messy black hair, and green eyes. She saw nothing but Romans. Then as if the crowd knew who Annabeth was looking for the Romans stood apart, making a pathway for two people.
The two people were in dark purple togas, they walked slowly as if in slow motion. Finally, after 8 months Annabeth...

personally think the Gigantes are not the true threat The basis for my Theory is that the Gigantes aren't even mentioned in the prophecy but the doors of death are and the fact they are mentioned so little in the lost hero is highly suspicious too me.

Another bit of evidence id like too point out is that Gaea is also not the only one of her kind also Known as the protogenoi (The Primordial gods who are the Cosmos itself)

For example Tartaros was the protogenoi of the great stormy Tartarean pit that lay beneath the earth as protogenoi of the Pit Tartaros, a figure who unlike his age-mates Gaea...