From the March 2018 Feudum: Rudders & Ramparts Kickstarter Campaign. This card may be used with the base game and any expansion.

A player aboard a vessel who possesses this Royal Writ Mandate card may travel from a port on the board to the Lone Isle card and/or from the card to any port on the board. Each trip between the board and this “private island” counts as 2 spaces. Only 1 vessel may be on the card and it may stay indefinitely. Players traveling to/from card must mind vessel routes, as usual. NOTE: With a movement allowance of 4 or more spaces, it is possible to move to the card and back to the board in one action.