Harpies!

From publisher blurb: When Man was allowed to set foot on her garden world, Athena still kept many areas for herself. In this wilderness monsters and wild animals live free and man is not welcome. Now, the son of a nobleman has been snatched by harpies. Harpies is a Dogs of Hades 'One Sheet' to give a feel for the realm of Garden of Athena where Dogs of Hades is set.