Alex:
Hunt the Delu Lizardman Suppliers, Special Agents, Commanders, Shaman and Cursed Seers. After you have collected all of the items, you should let Warehouse Keeper Sonin and Grocer Pano know that you have recovered their items. Then take the 10 Stolen Cargo items to Sonin and take the 10 Hate Crystals to Pano. After you have received reference letters written by Sonin and Pano, bring the 10 Old Treasure Maps to me.
Please do not delay!