The pirates got their hands on Silver’s secret map, on which appears the infamous « pirates mark », engraved with the invisible ink.

In this expansion Long John Silver draws his secret sign on the game board using a dry erase UV-marker. The players looking for the treasure can, on their turn, use a special UV-lamp to search for the sign in order to have extra information on where the secret may be hidden.

Contents:

• 1 chiffon Jolly Roger
• 4 markers for the pirates
• 1 invisible pen with a UV lamp for Silver
• 1 pirates mark tile