Obsidian Cube

Discovered in Flamerule 1495 DR by Castien of Alyssim, the obsidian cube seems to be of Elvish design, with each side depicting a different face. Found in a Kobold Lair where both magical and scientific experimentations seemed to have taken place.

Lore #1
Spending time to assess the design of the cube, there is no doubt that it is ancient Elvish. The faces on each side fey-like identical, and each with their own markings that you cannot understand, until with the help of Bravenheim casting comprehend languages. Comparing the language to previous books, you believe this to be the ancient Elysian language, though written in an Elvish script.

Lore #2
Studying further, you are able to note that the cube is capable of casting the following spells as you decipher the ancient Elysian script. Each of them spells of divination.
 * Detect Thoughts
 * Locate Object
 * See Invisibility
 * Clairvoyance
 * Arcane Eye
 * Scrying

Lore #3
The cube can be used just once per day, casting a spell of your choice, but the user may succeed on a DC14 intelligence check to use. Failure on this DC means the cube cannot be used again until dawn. The item is clearly once that has been designed for a powerful spellcaster. Passing the check needed, unintentionally casting Scrying, you momentarily see a silver haired elf aboard a mechanical steel structure. Lit only by the red light emanating from a large crystal before him. There is a moment of realisation as he looks directly at you, tired blood-shot eyes and gritted teeth. "That doesn’t belong to you…”, he spoke. And the vision immediately ends.