Shortcuts to Adventure #2: The Lost Gnome Mine

From publisher blurb: Shortcuts to Adventure is a new series of mini-adventures designed to be fit into any dungeon, sewer, or ruined city. Each consists of five to 10 rooms, no more, and has an adventure theme. The second Shortcut to Adventure module is The Lost Gnome Mine. Here long ago a clan of gnomes discovered a huge and beautiful black diamond. So magnificent was it, they began to worship it. Then, strange and terrible things happened, and the gnomes disappeared. But it is said that the huge black diamond, worth a king’s ransom, remains to be found… Designed for a party of 1st to 3rd level adventurers, this adventure can easily be adjusted to higher levels by altering the mix and number of monsters present.