Wingstone is a gnome traveller wandering the desert between Nardah and the Agility Pyramid. Players who have to deliver food to him during the Gnome Restaurant minigame may find it difficult to immediately locate him due to his large wander radius.
Gianne's cook book also mentions that Wingstone is responsible for bringing the human idea of making pizza to the Tree Gnome Stronghold, eventually resulting in the creation of the cheese and tomato batta.
Gnome Restaurant tips
Please note that the amounts of the rewards are incomplete and are being updated with the variable range of the items given.
Item Quantity Rarity GE market price Uncut ruby 2–3 (noted) Uncommon 2,926–4,389 Uncut opal 2–3 (noted) Common 376–564 Uncut red topaz 1 Uncommon 2,921 Uncut sapphire 6–16 (noted) Uncommon 3,924–10,464 Uncut emerald 3–5 (noted) Uncommon 2,454–4,090 Uncut diamond 1 Uncommon 3,069
Item Quantity Rarity GE market price Bird nest 1 Uncommon 3,543 Gnomeball 1 Uncommon Not sold Loop half of key 1 Rare 13,796 Tooth half of key 1 Rare 11,885 Mint cake 1 Rare  1,988 Snake charm 1 Rare Not sold Grand seed pod 5 Rare  741,130