Mystaran Campaign: Shardfall

A shard of the Sphere of Matter punched deep into Mystara centuries ago creating a deep hole. The locals examining the hole discovered crystal fragments which allowed a Cleric to meditate for and cast Magic-user spells.

Realizing the value, the locals began mining for crystals. Unfortunately the shardfall bought with it horrors of the Sphere of Matter which prey on the miners.

A - Overlooking Shardfall is Helwatch Keep whose occupants extort the crystals from those who Mine its depths.

B - First Ledge is heavily mined and a miner has 1% chance of finding a Minor crystal per day.

C - Second Ledge is the current upper active mineworkings with 10% per day of discovering a minor crystal (cast 1st - 2nd level Magicuser spells).

D - Third Ledge is  actively mined for 20% per day of a Minor Crystal or 1% for a Lesser crystal (1st - 4th level Magic user spells).

E - 4th ledge is unmined. there is 10% per day of a greater crystal (1st-6th magic-user spells). Monsters nest on the ledge.

F - Major crystals (1st - 7th level magic-user spells) protrude from the cavern wall. It is home to all manor of creatures of the sphere of matter.

G - The cistern is a cavern filled with mineral-rich water. A unique Crystal growing here in the hundred ton range will allow any spell-caster to unleash spells at level 40 spell-caster levels. It should be considered an artefact of the immortals.