High alchemy is a spell in the RuneScape massively multiplayer online role-playing game that allows players to turn items into gold. It is one of the most popular methods of making money in the game, as it is relatively easy to learn and can be very profitable.
To perform high alchemy, players must have a certain level of Magic and must have the necessary runes. They must also have the item they wish to turn into gold in their inventory. Once they have all of these things, they can cast the high alchemy spell on the item. The item will then be turned into gold, and the player will receive the gold in their inventory.