The 2013 Winter Offensive Bonus Pack includes a new board, number 66, and a new overlay, number 7. Three scenarios are included in the pack:
WO10 All Along the Merderet
WO11 Across the Issel
WO9 Sting'em at Zingem
Overlay 7 is a wide overlay that spans the width of the board providing a winding raised causeway between two marshes and is used in scenario "All Along the Merderet", contained in the pack.
All three scenarios use Board 66, an open rural board with a lateral road, some single hex buildings, most of which are stone, and a small level 1 and 2 hill which is notable in that it is partially covered by an orchard and is hedged.
