Sir Jerro must be killed during the Underground Pass quest in order to collect the blue paladin's badge. He can be killed after the quest is complete. If the player talks to him before they have killed him, he will give them some supplies. If the player has killed him and tries to talk to him, he will attack the player.
Item Quantity Rarity GE market price Grimy marrentill 1 Common 13 Grimy guam leaf 1 Common 15 Grimy harralander 1 Uncommon 674 Grimy tarromin 1 Uncommon 132 Grimy dwarf weed 1 Rare 448 Grimy irit leaf 1 Rare 775 Grimy ranarr weed 1 Rare 7,640 Grimy lantadyme 1 Very rare 1,391 Grimy cadantine 1 Very rare 1,312 Grimy kwuarm 1 Very rare 1,165 Grimy avantoe 1 Rare 1,814
Armour, weapons and ammunition
Item Quantity Rarity GE market price Steel sword 1 Common 80 Steel longsword 1 Uncommon 100 Steel full helm 1 Uncommon 146 Water rune 30 Common 120 Blood rune 1 Rare 367
Item Quantity Rarity GE market price Coins 2; 8; 15; 48; 120 Common Not sold Iron bar 1 Common 192 Mithril bar 1 Rare 662 Steel bar 1 Uncommon 473 Clue scroll (medium) 1 Rare Not sold
- If you try to talk to him after completing Underground Pass, he will recognise you and exclaim, "You again... die Zamorakian scum!"