|Release date||4 July 2006 (Update)|
|Location||Centre of second level of Stronghold of Security|
| A huge sack of grain in the middle of famine.|
The Grain of Plenty is a treasure chest found at the end of the second level of the Stronghold of Security. Once opened, the portal near the entrance can be used to reach the end of the level. When opened, the player will receive 3,000 coins, the ability to use the Slap Head emote, and will have all hitpoints and prayer points recharged. Like the other treasures found on previous floors, the Grain of Plenty contradicts the theme of the floor. A player can only open it once.