If Alcaron’s Scroll is attached to a hero, The Leaping Fish gains:

Forced: At the beginning of the quest phase discard X cards from the top of the encounter deck where X is the number of players in the game. Add each enemy discarded by this effect to the staging area.

While Pelargir Docks is the active location, enemies get +1 and +1

...they saw the River like a ribbon laid down to Pelargir, and beyond that was a light on the hem of the sky that spoke of the Sea. –The Return of the King

Forced: Each time a location is discarded from the top of the encounter deck, raise each player's threat by 1.

Shadow: Deal attacking enemy an additional shadow card for each Thug enemy in play.

Surge.

While City Street is in the staging area, players cannot travel to a location that does not have the title City Street.

Shadow: Attacking enemy gets +2 .

Immune to player card effects.

Travel: Each player must spend 1 resource from one of his heroes’ resource pools to travel here.

Shadow: Defending player discards all resources in his heroes' resource pools.

While Dockside Street is in the staging area, enemies in the staging area cannot be damaged or optionally engaged.

Travel: Exhaust the hero with Alcaron's Scroll attached to travel here.

While Alcaron's Scroll is not attached to a hero, Pelargir Alley gets +3

Shadow: If the defending player controls a hero with Alcaron's Scroll attached, attach Alcaron's Scroll to the attacking enemy.