While Fortress of Isengard is in the staging area, each Orc enemy gets +1 +1 and +1

Wizardry: Return the topmost enemy in the encounter discard pile to the staging area.

This was the stronghold of Saruman, as fame reported it; for within living memory the men of Rohan had not passed its gates...
–The Two Towers

Peril. Surge.

When Revealed: If Saruman is in play, he makes an immediate attack against you.

Shadow: Either discard 1 random card from your hand, or attacking enemy makes an additional attack against you after this one.

When Revealed: Each player assigns X damage among questing characters he controls, where X is the of the active location. If there is no active location, Fire and Foul Fumes gains surge.

Shadow: Assign X damage among characters you control. X is the of the active location.

When Revealed: Until the end of the round, characters cannot be declared as attackers. If there are no engaged enemies, raise each player's threat by 4.

Shadow: Until the end of the round, defending character cannot ready.

Mire 2.

Forced: When Festering Mire is discarded by the Mire keyword, each player discards his hand.

Travel: Each player discard 1 random card from his hand to travel here.

Mire 3.

Forced: When Candle-lit Pool is discarded by the Mire keyword, each player searches the encounter deck and discard pile for an Undead enemy and puts it into play engaged with him.

Travel: Spend 2 resources to travel here.

Mire 2.

Forced: When Great Reed Thicket is discarded by the Mire keyword, either flip Sméagol to Gollum or Gollum makes an immediate attack.

Travel: Exhaust Sméagol to travel here.

The engaged player cannot reduce his threat.

Forced: When Pale Faces attacks, raise your threat by 4.

Shadow: Attacking enemy get +X where X is the Mire X value of the active location.

Cannot have attachments.

The engaged player cannot reduce his threat.

Forced: After Rotting Thing attacks and destroys a character, place 1 mire token on the active location for each excess point of damage.

When Revealed: Each player must choose: either raise your threat by 1 for each questing character you control, or deal 1 damage to each character you control.

Shadow: Attacking enemy gets +1 If this attack destroys a character, place 1 mire token on the active location.

Peril. Surge.

When Revealed: Deal Gollum's Rage to Gollum as a facedown shadow card, if able.

Shadow: If attacking enemy is Gollum it gets +1 and makes an additional attack against you after this one.

Archery 2.

Forced: After Southron Warrior engages you, discard an ally you control.

Shadow: Attacking enemy gets +1 (+2 instead if the defending character is damaged.

Cannot have attachments or be placed under The Black Gate.

Southron Rearguard gets -1 engagement cost for each progress token on stage 1B.

Shadow: Return attacking enemy to the staging area.

While Wooded Glade is the active location, treat each non-objective attachment's text box as if it were blank.

Shadow: Discard a non-objective attachment you control.

While Dense Fern-brake is the active location, enemies in the staging area are immune to player card effects.

Shadow: Exhaust a character you control.

Shadowy Thicket gets +2 for each facedown card under The Black Gate.

Travel: The first player reveals the top facedown card under The Cross-roads and adds it to the staging area to travel here.

...presently the noise of fighting broke out near at hand, just above their hiding–place.
–The Two Towers

When Revealed: Until the end of the round, each Harad enemy in the staging area gets +2 -30 engagement cost, and cannot be optionally engaged.

Shadow: Attacking enemy gets +1 If this attack destroys a character, return attacking enemy to the staging area.

Peril. Surge.

When Revealed: Either place this card facedown under The Black Gate or put the top card under The Cross-roads into play engaged with you.

Shadow: Choose an enemy in the staging area. Engage that enemy and deal it a shadow card.

Forced: When Foul-smelling Cave is explored, place 1 resource on Shelob, if able.

Shadow: Attacking enemy gets +1 (+2 instead if attacking enemy is Shelob).

While Torech Ungol is in the staging area, Shelob gets +1 and +1

Travel: Exhaust Sméagol to travel here.

There agelong she had dwelt, and evil thing in spider–form, even such as once of old had lived in the Land of the Elves in the West that is now under the Sea...
–The Two Towers

Immune to player card effects.

While Cobwebbed Tunnel is in the staging area, each Underground location in the staging area gets +1 and +5 quest points.

Travel: The first player reveals an encounter card to travel here.

Peril.

When Revealed: Either discard a random card from your hand, or engage Orc of Minas Morgul and reveal an additional encounter card.

Shadow: Attacking enemy gets +2

Forced: After Under-gate Sentry attacks and destroys a character you control, discard a random card from your hand.

Shadow: Either discard a random card from your hand, or exhaust a character you control.

When Revealed: Each player removes a character he controls from the quest and exhausts that character. Until the end of the round, characters cannot be readied by player card effects.

Shadow: Exhaust a character you control. Until the end of the round, that character cannot ready.

Surge.

When Revealed: Deal Growing Stench to Shelob as a facedown shadow card.

Shadow: Defending character cannot ready. If the attacking enemy is Shelob and this attack destroys a character, place 1 progress on Shelob.