{"item_id":21387,"name":"Master scroll book (empty)","url":"https://runescapetrader.com/item/21387","unit":"GP","buy_limit":100,"prices":{"instant_buy":{"gp":69725,"observed_at":"2026-09-11T21:42:39Z","age_seconds":496,"status":"fresh"},"instant_sell":{"gp":54660,"observed_at":"2026-09-11T21:39:29Z","age_seconds":686,"status":"fresh"}},"market_data_updated_at":"2026-09-11T21:50:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}