You are playing Campaign Mode.

Setup: Put Mendor into play.

If Mendor leaves play, the players lose the game.

King Thranduil has assigned a guide, Mendor, to assist you in your passage through Mirkwood Forest.

Resolution: Each player earns 1 copy of the Mendor's Support boon card. Add the earned cards to the Campaign Pool.

If Stage 3B was Beorn's Path, add the Ungoliant's Swarm burden card to the Campaign Pool.

If Stage 3B was Don't Leave the Path, add the Lingering Venom burden card to the Campaign Pool.

“The forest is dangerous, but that was beyond what one might expect to find.” Mendor seems shaken. “I fear something is not right in the land. I shall continue to travel with you.”