Sacred:Merchant
A Merchant is a special NPC found in most towns of Ancaria. Merchants usually wear a distinctive blue suit (sometimes red), and always have a bag icon over their head. Some towns have more than one merchant, while smaller towns or abandoned ruins might have none. Merchants are depicted on the large map by the same bag symbol displayed above their head.
Interaction
Clicking the left mouse button on a merchant will open the store window (the mouse cursor will become a bag symbol). Both the character inventory and merchant's inventory will be displayed, making it possible to 'Buy' or 'Sell' items. The merchant has three inventory sections: Weapons, Armor, and Miscellaneous Items (potions, rings and amulets).
If runes or scrolls have been sold to the merchant, they will remain in the Miscellaneous section until the item selection is replaced. You can switch between these three panes as you wish; the merchandise displayed will not change, however. It may shuffle around, but the selections will stay the same.
Buying Items
Click on an item in the merchant's inventory to be asked if you want to buy it. Right-click an item to purchase it immediately.
Selling Items
Items are always sold to a merchant for a fraction of their actual value. The safe method for selling items to a merchant is to click the mouse on an item while it is in your backpack. A confirmation window will open asking "Sell this?" and specifying the price the merchant will pay. You have the opportunity to change your mind and cancel the transaction. A faster method is to right click the item. It immediately transfers to the merchant inventory and you receive payment. Normally, the item will be visible in the merchant's inventory for repurchase, should you suffer seller's remorse. If, however, the merchant inventory is too full, and the item will not fit, then it is lost. Similarly, Unique Items are not retained by the merchant for resale. On the other hand, Set Items are retained.