Rope, metal, and rations.

You walk over to the back of the wagon, curious what three city elves would be transporting this far outside of normal trading routes. All you see in the back is some organized rations, a few coils or robe and... oh this explains it. They carried heavy metal shackles and other metal bondage gear. The only reason you would need this much in excess binding were if you were planning on capturing something very strong or dangerous... like an orc or a Futa.

You had heard that futanari made prized slaves, not only because of the difficulty in capturing a member of the warrior race, but because of what they could produce. Futa cum was highly addictive, so many of the underworld sought it out as an ingredient in their illicit goods. If one could freely tap from the source, the profits could be immense.

So these three were slavers... or at least wannabe slavers. Given their ragged appearance and gear, you wonder if this was a **** ploy for money. Not that it mattered in the end. If they wanted to enslave you, turnabout was only fair.