Pengelly and Skullkeep are accessible only after the Gallowgaes is eradicated (see Gallowgaes). The Centaur lands will be closed to the party until Skullkeep has fallen and Gremyr is dead.
Pengelly
This town has been taken over by the minions of the Grey God. They are led by Reismar (a Runic deserter, wanted by Bounty Hunters) who has taken up in the Thane's manorhouse. Go to the local inn (76,83) and order a drink. You will receive advise on how to enter the Manorhouse gates (74,81) : say 'slaves' to the guards when they ask you your business. They will gladly escort you to the main slave pens. However, the Grey God's minions wil see through your lies and attack. At this point the Thane's men will join you against their hated oppressors. Find Reismar and dispatch him, return the Runic standard to the Bounty Hunters in Newcaster to confirm his bounty. Eventually some sort of peace will return to Pengelly, but at a price.
Skullkeep
Assault the towers guarding the approach to the Skullkeep at (82,72). The Keep itself is at (84,64). It is a nest of traps and enemies and hidden places.
You will need to wait your way through Skull Keep. Having a skilled thief would be useful, there is a lot of treasure to be had, and deadly traps guarding it. A book hidden on a bookshelf (54,3) triggers a secret door where the Malylakron is hidden. This stone houses the soul of a demon lord. It is used to attract the troubled and the devious to the Skull Keep to obey the Grey God. It attracts them through its magnetism. Destroying it releases the Demon but he is not encountered again in this Scenario.
To get the most out of the Skull Keep, open every chest and every door, keep search mode on. The chest at (40,1) contains essential items. Beware of vicious cursed items mixed in with powerful artifacts. Read the books in the library. Downstairs in the dungeons the party will find a useful NPC, Vesta, Guard Captain of Porthenys who has some useful information. The party should track down and keep on them a Pendant of the Grey God and a candle made of human fat (also found in Gwyddno's cave on the Mystic Isle).
The real target of Skull Keep is Gremyr himself, the High Prelate of the Grey God. He is lecturing his followers in the lecture hall and will retreat behind his traps and animated guardians. Search his quarters for hidden walls and chests. He will escape through a tunnel but the party can catch him up. Beware his allies however. Once Gremyr is dispatched, word of this major deeed will reach the nearby Centaurs who will now allow passage through their lands (grudgingly).
A nearby cave houses the Ky Broder, dogmen who act as warriors and guards for the Grey Gods's followers. (87,57)
Centaur Lands
Once Gremyr is dead the Centaurs will allow passage through their lands. The party will see the Watch Towers to the north guarding a land beyond. The Watch Towers will prevent further northward movement until they are deactivated by the party by raising Ossian at the Altar of Skulls.
The Altar of Skulls
The Altar of Skulls is on the third level of the Bone Shaver's shrine to the Grey God. This underground shrine is hidden in the centre of the devastated city of the Bone Shavers (who are now thankfully extinct) at (47,42) BUT the party will find it by being told by the spirit of a Fomorian trapped in a stone at (43,28). It was the Bone-Shavers who slaughtered the Fomorians and trapped their army in stone.
Once inside the Bone Shavers shrine the party will confront two enormous yellow eyes. They are programmed to allow entrance to anyone wearing a Pendant of the Grey God (which are worn by all senior Grey God priests and minions). The party will be forced to endure various tests and ordeals before entering the next level.
The Hall of Shadows
Three large and foul smelling braziers confront the party. By burning the candle of human fat on the central brazier the Hall of Shadows comes to light and a entrance is revealed beyond to the next level. However, the party has just given life to the shadows and being unable to control them, are attacked.
The third level houses the Altar of Skulls. If the party stands by the Altar, uses the cauldron to raise Ossian from his Torc and gives him the Lay of Victory he will reverse his songspell and deactive the Watch Towers. The party will be able to travel to the lands of the Shadow Gaunt and face the Grey God Himself. However the Altar is guarded by deadly animated beings.
If the party survives the shrine begins to collapse and Ossian will teleport them to the surface. The Centaurs have gathered for battle and join you in a massive series of battles in the lands of the Shadowgaunt.