User blog comment:Darkcloud1111/''The Mark of Athena'' Plot Holes/@comment-4521561-20121015194512/@comment-4640327-20121016212510

So they rose much faster, like regular monsters would and simply went quietly to Italy to work with Arachne. With the hel of Porchys through the Atlantic they wouldn't be noted, specially with the gods having forgot of them. And there they stayed until now.