Such a message appears only if you have your seafaring warehouse full when opening the mermaid's treasure. It relates only to the items that are exclusive to seafaring: they alone go to your inventory on the Island of the Ancients. The common resources and gold remain on the seafaring map and are automatically added to the total amount of resources that you can see in the upper right corner.
I get a message that the resources from the mermaid's treasure are sent to the Island of the Ancients, but I cannot find them in the inventory! Where are they?
Last Updated: 349d