You are playing Nightmare mode.
Gollum cannot take damage.
Setup: Search the encounter deck for The Lower Gate and set it aside, out of play.
Forced: When stage 3B is revealed, add The Lower Gate to the staging area.
Begin with the standard quest deck and encounter deck for the Dungeons Deep and Caverns Dim scenario.
Remove the following cards, in the specified quantities, from the standard encounter deck:
3x Goblin Miners
3x Goblin Axeman
3x The Goblins' Caves
3x Grip, grab! Pinch, nab!
1x Not fair! Not fair!
Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard Dungeons Deep and Caverns Dim encounter deck.
Finally, flip this setup card over and place it next to the quest deck. Its effects remain active throughout the game, which is now ready to begin.
When Revealed: Discard 2 resources from Bilbo Baggins's resource pool, or Gollum makes an attack against Bilbo Baggins.
Riddle: The first player names a sphere, a cost, and a card type, shuffles his deck, and discards the top 3 cards. For each card that matches all three items, place 1 progress on stage 2.
When Revealed: Attach We Hates It! to Gollum. (Counts as a Condition attachment with the text: "If the players are on stage 3, Gollum gets +2 
.")
Riddle: The first player names a Trait, shuffles his deck, and discards the top card. For each card that has at least 1 matching Trait, place 1 progress on stage 2.
"But at the western edge of Mirkwood the trail turned away. It wandered off southwards and passed out of the Wood–elves' ken, and was lost." –Gandalf, The Fellowship of the Ring
Any player who does not control a hero with at least 1 Clue objective attached cannot commit characters to this quest. If there are ever no heroes with Clue objectives attached in play, reset the quest deck to stage 2B.
If the players defeat this stage, the players have once again found a true sign of Gollum's passing, and have won the game.
After a tiring pursuit through the treacherous marshland, you have cornered Gollum, and move in for the capture.
Forced: After this stage is defeated, the first player chooses a player. That player must pass an Escape test, dealing 1 card from the encounter deck for each resource token on Gollum, to capture him. If Gollum is not captured at this time, reset the quest deck to stage 1B.
If this final Escape test is passed, the players have captured Gollum and won the game.
As soon as he thinks that no one is watching, Gollum attempts to slip his bonds and escape.
Having thwarted Gollum's escape attempt, you tighten his rope and push on through Mirkwood, to Thranduil's palace.
The player guarding Gollum cannot play cards from his hand.
As you make the final push to Thranduil's Palace, your enemies make a desperate attempt to ambush your party, and seize Gollum for themselves.
Forced: At the beginning of the combat phase, all enemies in play engage the player guarding Gollum.
Players cannot defeat this stage if there are any enemies in play. If players defeat this stage, they have won the game.
To everyone's surprise, Bilbo Baggins rejoined his companions on the eastern side of the Misty Mountains. However, their celebration was cut short by the chilling sound of wolves howling close by. To the frightened hobbit, it seemed that they had escaped from the goblins only to be eaten by wargs.
When Revealed: The first player gains control of Bilbo Baggins. Reveal 1 encounter card per player and add it to the staging area.
Gollum engages the first player. Damage from undefended attacks made by Gollum must be placed on Bilbo Baggins.
All riddle effects are ignored. Treachery cards gain surge.
If players defeat this stage, they have won the game.