Once an Ambush card is revealed, check the direction of the arrow shown on the card.

Each player immediately passes their Map sheet to their neighbor in that direction.

Each player draws the depicted Shape on their neighbor's Map, then fill it with the Monster Terrain type.

If a player cannot legally draw the depicted Shape, they must instead draw a 1x1 square anywhere on their neighbor's Map and fill it with the Monster Terrain type.

Once everyone is done, everyone returns Map sheets to their owners and the Ambush card is returned to the box.

If an Ambush card is revealed immediately after a Ruins card, the Ambush card is resolved normally. The effect of the Ruins card will apply to the next Explore card that is revealed.