Before random event update in 2014 the zombie used to appear randomly when burying bones. On appearance, it would say, "Brainsssss!" As with similar guardian random events, the zombie's Combat level, Hitpoints, and maximum hit depended on the player's Combat level.
Zombies were somewhat rare, as players rarely buried bones in high enough quantities to activate this random event. Also, Prayer had two other random events that could occur while training it: Shades and Leo the Gravedigger. Zombies would not appear if training Prayer via the Ectofuntus or a POH altar.
Item Quantity Rarity GE market price Big bones 1–7; 10 Always  262–2,620 Bones 3; 9; 10 Varies  267–890 Air rune 40 Uncommon 200 Cosmic rune 5 Uncommon 715 Chaos rune 35; 50 Uncommon 3,115–4,450 Fishing bait 27; 50 Common 108–200 Coins 26 Rare Error Uncut sapphire 1 Common 455 Item Quantity Rarity GE market price Rune javelin 5 Rare 875 Loop half of key 1 Very rare 10,307 Tooth half of key 1 Very rare 10,840 Dragon bones 1–3 Varies  2,713–8,139
- ↑ 1.0 1.1 1.2 Big bones are always dropped in varying quantities but regular bones or dragon bones in members can be dropped with them.
- The Zombie in Stronghold of Security respawns in one minute