Jemeny take teh potion and shake it gently. he then remove the cap of the vial and take a drop that have stick on it. He taste it. "Hmmm... let's me consult my note, I'm less familar with that potion." He go in the backstore and come back with a little book. "Here it is. That's why I didn't recognize it at first. It's generally made by some druids. It's allow to become invisible to all senses of any animals nearby. That mean they cannot see, hear or smell you. but they still can bump you if you are in there way."
Jemeny put back the cap on teh vial and take the two scrolls. He whispers some words and do some sign over the scrolls. He take a few minutes to read them. "The first one will neutralize temporary a poison... it doesn't remove it, only put it dormant for a few hours before it takes effect, but you might eb able to find teh antidote during that time. The second one allow you to become invisible to anyone, not only animals like the potion, but it won't hide your smells or teh sounds you make. A plain invisible effect."
"The potion, I'm ready to offer you 30 gp." tells Valeria "For the scrolls, 90 gp each. If you wnat to sell the three, it will make 210 gp. If you are interested to sell the axe or shield, we won't be able to buy them except if you are interested in one of the studded armors or the rapier we have here. If you are not interested, I can point you to some buyers. They will offer fair price, but not as good as we can when we have the fund."