Scenario #7: The Glowing Gemstone

Background

This is a short adventure for characters of levels 1-2, and is intended to get PCs involved in the strange goings on in Norwold. 

Maevig Trostober (human female, T2, neutral) is a wandering trader, visiting the new colonies, Alpha, the Hin in Leeha and the elves of the woodlands. Recently on one of her trips out into the forests she bought an unusual amulet off a trapper who had found it in some ancient fortification while wandering in the woods. The centerpiece of the amulet is an emerald-green gem that glows. This makes it both very pretty but also raises questions about its true nature. 

However, on her way back she and her pack mule were waylaid by a band of orcs. She escaped with her life, but her mule was not so lucky. She has lost nearly everything except her life but has eventually reached the safety of Barathmir. Once there she asks around for adventurers to help her retrieve her valuable from the orcs. From Maevig's description of her robbers, the captain of the guard (Gunningham) confirms these sound like orcs that have become bolder in their raids, not just stealing livestock but also killing shepherds and farmers. Dealing with these orc raiders now would prevent further damage and death. 

The orcs' lair can be found not far from where Maevig was attacked, 5 miles from Barathmir, with the entrance being a cottage-like building set up against a hillside, with the sides merging into the sloping ground. 

The amulet contains a green-glowing eldritch crystal, one of the ancient power sources that the Arvorians used to power their magic and rituals. However, it is very dangerous, emitting magical radiation that corrupts and mutates nearby creatures. The amulet is constructed and enchanted to contain the corrupting radiation from the crystal - as long as it is within the amulet, the eldritch crystal is relatively safe. The orc shaman of the tribe did not know this until he found out the hard way that he should not remove the crystal from its containing amulet. He and two other orcs have now become mutants - however, the shaman has now put the crystal back into the amulet.  

Key to Map

(note that stats used more than once - orc and orc leader - are given at the bottom of this key). 

1. Entrance hall: No monsters but trapped with a tripwire across the floor near the entrance door linked to a series of bells. This will alert the orcs in the guard posts (areas 2 & 3 who will investigate). 
2. North guard post: 3 orcs (hp 6, 3, 5)
3. South guard post: 2 orcs (hp 2, 5)
4. 2 orcs (hp 4, 2) + 1 orc leader (hp 8). They will let the other orcs in areas 2 & 3 investigate any alarm in area 1, but will  emerge and join in if their fellow orcs yell for help.  
5. 4 giant ferrets (AC 5, Move 150', HD 1+1, hp 5, 6, 3, 3, THAC0 19, Att 1 bite for 1d8, save as F1, Ml 8, Align N, XP 15 each). These ferrets are partially tamed by orcs but will attack any other humanoids. They are not yet trained enough to guard the entrance. 
6. Living chamber: 10 orcs (hp 6, 6, 5, 5, 4, 4, 3, 3, 2, 2) are gathered around a campfire with a roasting pig on it. 
7. Empty
8. Training hall: 4 orcs (hp 5, 7, 5, 3) + 1 orc leader (hp 8) are using spears and hand axes against wooden dummies. There are also some wooden training weapons on hooks on the wall. 
9. Orc chief's lair: Orc chief (AC 5, Mv 90', HD 4, hp 15, THAC0 16, Att 1 weapon for 1d6+2, Save as F4, Ml 10, Int 10, Align C, 75xp) who wears a chain mail shirt and wields a magical mace +1. In a chest in the corner is the tribe's main treasure: 800gp, 5500sp and 4 amethyst gems worth 100gp each. 
10. Second living chamber holds 6 orcs (hp 7, 4, 6, 6, 2, 3) and 8 crude straw mattresses on the floor where orcs sleep. 
11. Store room: This room contains various boxes and barrels of food and drink. Most of it is of little value (maybe 5sp each for barrels of salted meat) but among them is a cask of fine Thyatian wine worth 200gp to a connoiseur. Also here is a bundle of furs and hides seized from Maevig by the orcs. The bundle weighs 500cn/50lb and is worth 300gp in total. Generous characters might hand this back to Maevig. 
12. Rubbish dump: 9 giant rats (AC 7, Move 120', HD 1/2, hp 2 each, THAC0 20, Att 1 bite for 1d3, save as F1, Ml 8, align C, XP 7 each). This room is absolutely foul with piles of filth in the corners. The rats are defensive - they won't attack intruders immediately but will try to scare humanoids away but will retaliate if attacked or intruders won't leave. There is nothing of value here.  
13. Shaman's shrine: This room contains the mutated orc shaman (AC 6, Mv 120', HD 2, hp 10, THAC0 19, Att 2 weapons for 1d6/1d6, or spell, Save as C2,  Ml 8, align C, XP 30). The shaman is clearly not normal, having sprouted both a third leg and a third arm (which wields his second weapon). His studded leather armour has been heavily modified to accommodate this new body. In addition one side of the shaman's face is covered in gross warts and pustules. Despite this the shaman can still cast spells and has prepared both Darkness and Cure/Cause Light Wounds.  In the northwest corner there is the shaman's shrine and idol of a fierce orcish warrior deity. Around the idol's neck is the amulet with its glowing eldritch crystal. In addition the shaman has his own  treasure in a sack behind the idol: 2300sp, a jade gem worth 300gp and a bejeweled silver dagger (non-magical but still effective against creatures vulnerable to silver weapons) worth 300gp. 
14. Mutant orcs. These 2 orcs were assisting the shaman when he briefly released the eldritch crystal from the safety of the amulet, and have shared similar afflictions. Brakk now has 9" tusks sprouting from the side of his mouth which he is learning to use in combat. He also now has a mane of shocking green hair. Voss has been reduced in height due to his legs suddenly shrinking to half their normal size but he is also covered in crocodile-like scales that give him additional protection. 
    Brakk (mutant orc): AC 6, Mv 90', HD 1 , hp 6, THAC0 19, Att 1 weapon/1 tusk for 1d6/1d3, Save as F1, Ml 8, align C, XP 10. Brakk wields a hand-axe and has studded leather armour, and has 10sp treasure.
    Voss (mutant orc): AC 4, Mv 30', HD 1, hp 6, THAC0 19, Att 1 weapon for 1d6, save as F1, Ml 8, align C, XP 10, Voss wields a mace and uses his new mutated hide instead of armour. He has 15sp treasure. 
15. Slave quarters: 10 kobolds (AC 7, Mv 60', HD 1/2, hp 3 each, THAC0 20, Att 1 dagger for 1d4, Save as NM, Ml 6, align C, XP 5) + 3 orcs (hp 4, 3, 5) as guards. Despite their lowly status, the kobolds have been allowed to have any copper pieces the orcs come across and as such they have accumulated 760cp which they keep in a earthenware vase in a corner. There are also various food scraps and pieces of bedding and dirty blankets. 
16. 1 giant toad (AC 7, HD 2+2, hp 11, THAC0 18, Att 1 bite for 1d4+1 or tongue for special, Save as F1, Ml 6, align N, XP 35. It has a sticky tongue that can shoot out to 15' and drag dwarf-size or smaller creatures to it to be bitten. On a to hit roll of 20 small prey will be swallowed whole, taking 1d6 damage each round thereafter. The kobolds in area 15 are rightly terrified of this creature and refer to it as "the slimy death". There are 3 kobold skulls and assorted small bones around the toad's lair as well as a single small amber gem worth 50gp. 
17. Empty
18. Empty
19. 2 giant bats (AC 5, Mv fly 180'/crawl 30', HD 2, hp 6, 9, THAC0 18, Att 1 bite for 1d4, save as F1. Ml 8, Align C, XP 20 each). The bats can come and go using a vertical chimney that connects this cave to the outside. 

Commonly used stats: 

 Orc (normal):  AC 6, Move 90', HD 1, THAC0 19, Att 1 spear for 1d6, Ml 8, Align C, XP 10 each
Equipment: Leather armour, shield, spear, 10sp each

Orc leader: AC 6, Move 90', HD 1 (8hp) THAC0 19, Att 1 axe for 1d6+1, Ml 8, Align C, XP 15 each

Equipment: Leather armounr, shield, hand axe, 20sp each

Conclusion

Successfully retrieving the amulet with the glowing crystal will earn a reward from Maevig of 600gp to be shared among the party. 

If the PCs were so foolish as to open up the amulet and remove the gem then the mutations that affect the PCs are up to the DM (both Gamma World and Warhammer Realms of Chaos offer ideas for mutations). A generous DM may allow the mutations to be undone with a Remove Curse spell or something more powerful (such as Restoration or Regeneration spells). 

The amulet will generate a lot of interest from the more learned and erudite members of Barathmir, especially Sorsoni the Mysterious and also Father Rythorn. When asked (either by PCs or by Sorsoni), Maevig reveals that she bought it from a trapper called Berresford who operates in the woods north of Barathmir. Sorsoni suggests that this Berresford should be asked to point the way to the ruins in which he found the amulet. This course of action would require a party of brave volunteers to go into the woods and find this trapper....