You are playing Nightmare mode.

Setup: Each player searches the encounter deck for a Huorn enemy and puts it into play engaged with him. Shuffle the encounter deck.

The Player cannot defeat stage 1B or 2B unless Edge of Fangorn is in the victory display.

Ever nearer the tree–clad slopes of Fangorn loomed, slowly darkling as the sun went west. –The Two Towers

Begin with the standard quest deck and encounter deck for the Into Fangorn scenario.

Remove the following cards, in the specified quantities, from the standard encounter deck:

3x Deadly Huorn

3x Tangled Wood

3x Turned Around

Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard Into Fangorn 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.