Surge.

Forced: After Eastern Crows is defeated, shuffle it back into the encounter deck.

Shadow: attacking enemy gets +1 (+2 instead if defending player's threat is 35 or higher.)

When Revealed: Deal 1 damage to each character controlled by each player with a threat of 35 or higher.

"They say in my land he can govern the storms in the Mountains of Shadow..."
–Boromir, The Fellowship of the Ring

When Revealed: Each player raises his threat by 1 for each character he controls that is not currently committed to a quest.

Shadow: Defending player chooses and returns 1 exhausted ally he controls to its owner's hand. If he controls no exhausted allies, raise his threat by 3.

When Revealed: Each location in the staging area gets +1 until the end of the phase. Then, each player with a threat of 35 or higher chooses and discards 1 card from his hand.

"But it will be hard to find the path unless the fog lifts a little later on."
–Aragorn, The Fellowship of the Ring