User blog comment:SayuriDarling/The Mark of Athena Official Discussion/@comment-71.60.55.121-20121009101722/@comment-3365775-20121009211133

Annabeth probably did. Annabeth and Sally were "crying over Percy" (some quote to that extent), so she'd probably tell her about their (Jason, Piper, Leo, Annabeth) quest to go to Rome in Argo II.