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 10 Grimy guam leaf 1 Common 8 Grimy harralander 1 Uncommon 595 Grimy tarromin 1 Uncommon 150 Grimy dwarf weed 1 Rare 560 Grimy irit leaf 1 Rare 905 Grimy ranarr weed 1 Rare 7,990 Grimy lantadyme 1 Very rare 1,782 Grimy cadantine 1 Very rare 1,595 Grimy kwuarm 1 Very rare 1,475 Grimy avantoe 1 Rare 1,979
Armour, weapons and ammunition
Item Quantity Rarity GE market price Steel sword 1 Common 68 Steel longsword 1 Uncommon 118 Steel full helm 1 Uncommon 150 Water rune 30 Common 150 Blood rune 1 Rare 323
Item Quantity Rarity GE market price Coins 2; 8; 15; 48; 120 Common Not sold Iron bar 1 Common 94 Mithril bar 1 Rare 614 Steel bar 1 Uncommon 500 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!"