User blog comment:Jack Grace625/Son of Neptune/@comment-3146930-20111012004921

The main reason why people think it is her (not even looking at information before The Son of Neptune) is because Hera told Percy that Annabeth would cause a lot of trouble for Percy in the future when they went to Rome. Because Hera said she was going to Rome and the part of the prophecy about "Wisdom's daughter of walks alone, the Mark of Athena burn's through Rome," suggests Annabeth is the one in the prophecy adding a lot of credit to her. However, it doesn't say Athena's daughter, but wisdom's which could mean a great many things