A Fire spirit is a common phenomenon that can appear while adding logs to a bonfire or a portable brazier. They are unique to the player; only the player receiving the fire spirit event will be able to see it. It is possible for multiple fire spirits to be active for the player.
When a spirit appears, the player can click on it to collect a reward. Reward amounts are based on the type of logs used: the better the log type, the higher the reward. Multiple, different rewards may be acquired from a single spirit. However, players should note that the spirits will only last for 50 seconds before disappearing, so players must pay attention in order to spot them. Charms are usually obtained, though numbers and types may vary. A crystal tinderbox gives quintuple the chance of spawning a fire spirit while training Firemaking on bonfires while it's equipped in the weapon slot. If the Fairy Fire perk from Memorial to Guthix is enabled, a divine fire spirit will spawn instead.
Wearing a Firemaking cape or variant thereof improves the rewards obtained from fire spirits.