Prophecies in The Lost Hero

In The Lost Hero, Rachel recited a prophecy while talking to Jason and Chiron at the campfire the lines were:

Child of lightning, beware the earth,

The giants' revenge, the seven shall birth,

The forge and dove shall break the cage,

And death unleashed, through Hera's cage.

The prophecy was uncovered throughout the story:
 * Jason, child of Jupiter, must beware Gaea, the earth goddess
 * The giants rise to defeat the olympians, the seven heroes appears as a result
 * Leo and Piper, son of Hephaestus and daughter of Aphrodite, breaks Hera's cage.
 * Hera supposedly killed Jason by unleashing her divine form to kill Porphyrion