A Port Report: the Fathomking's Hold

 is considered a Knowledge Curiosity item.

Item description
"Only a tiny portion of the Hold is visible. But you can learn much from the comings and goings of those who visit."

Obtaining
 is a Port Report which can be obtained in The Fathomking's Hold, a Sunless Sea port, by doing the Compile a Port Report action.

Usage
Initial turn in at the The Admiralty Survey Office in  London:  
 * SS paperstacksmall.png +1 x Favours: Admiralty's Favour
 * SS fuelsmall.png +1 x Fuel
 * SS echosmall.png +30 x Echo.
 * SS fathomkingshold portsmall.png -1 x A Port Report: the Fathomking's Hold

Subsequent turn ins:  
 * SS fuelsmall.png +1 x Fuel
 * SS echosmall.png +30 x Echo.
 * SS fathomkingshold portsmall.png -1 x A Port Report: the Fathomking's Hold

For all the port report locations go the Port Report page.