Neverwinter Nights: Hordes of the Underdark

Neverwinter Nights: Hordes of the Underdark is the second expansion pack for Neverwinter Nights. New features included new prestige classes, tilesets, monsters and the ability to craft items. The key new feature of the expansion, though was the introduction of epic levels which allowed players to achieve level 40.

Chapter one
The story follows on shortly after Neverwinter Nights: Shadows of Undrentide. The player from that campaign having emerged from the Plane of Shadow with a relic which, when used transports you to a place inhabited by a creature known as The Reaper. He will bring you back to his realm if you die and send you back to the place where you died. Also, by expending the inherent magic in a rogue stone you can 'bind' a place to the relic, allowing you to transport yourself to that place from inside the Realm of the Reaper. Every attempt to get rid of the relic is futile.

You are asked to travel to the Yawning Portal in Waterdeep, where Durnan gives you a free room. After a strange, vivid dream involving a Drow priestess being told that you were going to defeat her you wake to the sight of a Dark elf thief stealing your equipment. You kill the thief but your equipment is lost. Durnan tells you that creatures coming up from Undermountain have been assassinating prominent people in the city and, with your reputation after your adventures in Undrentide, he wants you to solve the problem. The inn is then attacked by Drow and Duergar, killing most of the patrons before you can drive them into the portal room, where they are defeated. Moments later, a beholder levitates up the well and knocks you and the survivors down. Four adventurers (Tomi, Sharwyn, Daelan and Linu from the original campaign) charge off down the well after it. A cleric of Sune resurrects the dead and gives you a magical rod that will bring back the quartet who rushed off (it is theorized that they have already perished). Deekin turns up and offers his services, since he was short-changed by the publishers when he sold his original book about you, he wants to make another one, plus thinks that you would be the only person to accept him after the bad treatment that he'd recieved locally.

The player then enters Undermountain and traverses three levels of the dungeon, finding and raising the four other adventurers, settling a dispute between a tribe of Ogres and a group of Fey (one way or another) and discovering the reasons for the recent attacks. You find out that a Drow calling herself the Valsharess (the priestess you dreamt of) has captured Halaster and, using the Silence of Lolth as a distraction, somehow conquered the surrounding Underdark, creating a vast army out of it's inhabitants. She has now begun an invasion of the surface-world, starting with Waterdeep. You are also told by a Dark elf named Nathyrra that there is a resistance movement and she wants you to help as you are the only thing that the Valsharess fears.

You find your equipment and, with the help of Nathyrra assault the base where Halaster is being kept. You break the wards holding him when a clone of Halaster arrives, just too late to help. While the two mad mages argue amongst themselves about who is the real Halaster you pipe up and are immediately placed under a geas to stop the Valsharess' plans from succeeding before he teleports you away.

Chapter two
You arrive in the Temple of Lolth in the Dark elf town of Lith My'athar where a fragile alliance exists between the native Lolth-worshippers and a group of Eilistraee followers led by The Seer, a powerful Eilistraeean priestess who explains how the Valsharess has gotten this far. It seems that she has somehow bound Mephistopoles, lord of Cania into her service. The Seer tasks you with weakening the Valsharess' armies before she makes her inevitable strike on the town. You can achieve this by bargaining with or destroying her allies. When the attack finally comes, the Valsharess' force is weak enough for you and the defenders of Lith My'athar to handle. You are then to lead the assault on the Valsharess' fortress but the Valsharess commands Mephistopheles to teleport you to her throne room alone. He does so and you find yourself alone, trapped in a magical cage. She orders him to kill you but he refuses, killing her guards and releasing you from your cage. You kill the Valsharess and Mephistopheles reveals his betrayal. Apparently, the Relic of the Reaper was a plant. His and your fates were intertwined with the relic and by ordering him to kill you, the Valsharess broke her pact with him. Mephistopheles kills the player and banishes you to Cania.

Chapter three
Back in the Realm of the Reaper, you find that neither you or your companions (who were also killed) can bring yourselves back to life. The Reaper explains things, saying that Mephistopheles knows his true name and thus is in complete control of him and has banned him from allowing you to go back to Toril. If you learn the Reaper's true name too, however, then you could command him to let you back. He tells you to walk through a door behind him, one that previously barred your passage. Upon doing so you find yourself in Cania and soon discover that Mephistopheles is using the souls here to re-animate the corpses killed in the Valsharess' war in order to take over Toril so that he can turn it into his own hell, free of Asmodeus. In addition to discovering the soul of Aribeth De Tylmerande (who can then follow you, either as a blackguard or a paladin depending on your choices) you find out that the Knower of Names, a former lover of Mephistopheles, betrayed and imprisoned by him on this plane would know the Reaper's name. You set out to find her, braving this hell's painfully cold temperatures and other dangers to free her and learn the Reaper's name. You speak it to him and he sends you back to Toril whereupon you find that Mephistopheles has made it to Waterdeep. You duel with Mephistopheles and, once you've beaten him are lauded as the saviour of the world.