Originally Posted by Our Humble Narrator
After managing to find a patch where it wasn't entirely covered in lichen, Vengeance examines the stone - it is of a type that he has never seen before, seemingly infused with tiny polyhedral metallic crystals of gold, silver and copper coloured minerals, but it does appear to be originally natural. How it is shaped is intriguing though - it is slightly concave on top, and the outer holes appear to channel back to the central one. The item lodged inside it is, apparently, a very peculiar acorn, which seems to switch between some sort of phasing state and some sort of super-hard state. According to Georges readings, nothing that Vengeance has about his person at the minute would do any notable damage to either the stone or the acorn.