This is to get new robes and the chicken stone. All you have to do is talk to 6 people and give them some items.

1.
Person - Avalani
Loc - Clan Camp
Items - 5 Cabbages, 4 Onions and 3 Cowhides

2.
Person - Murky Matt
Loc - G.E
Items - 2 Bread, 5 Anchovies and 1 Garlic

3.
Person - Wizard Mizgog
Loc - Wizard Tower
Items - 7 Water Runes, 6 Body Runes and 4 Fire Runes

4.
Person - Gem Trader
Loc - Al-Kharid
Items - 2 Mind Runes, 4 Leather Gloves, 3 Rope and 4 Logs

5.
Person - Barnabus Hurma
Loc - Varrock Museum
Items - 14 Air Runes, 2 Iron Pickaxes, 3 Beer Glasses and 7 Knifes

6.
Person - Sir Vyvin
Loc - Falador Caslte
Items - 1 Wooden Sheild, 6 Bronze Swords and 2 Goblin Mail

After you done all that talk to Avalani at Clan Camp for your reward.