I might otherwise think these filler like chapters, seemingly not relevant to the bigger plot, would be annoying, but Vamirio makes them all worth it. She's just so honest and straightforward, and lets it all show on her face.
Wait, did they sold their crystals and then didn't figure out they were getting scammed? They must've known their stuff was valuable anywhere, at least more than some map (even if they really needed it). Why would they just take thay price at face value?