Obsidian Mirror
The Obsidian Mirror is an animus-touched, oval-shaped piece of glittering, black glass. Greatness was supposed to use it to spy on the RainWings, but did not, because she did not trust items created by animus dragons. It is said to not have performed as well since Stonemover may have done something to it. There is a theory it was enchanted by Darkstalker, as in Moon Rising he says "enchant this mirror to spy on whichever dragon I choose."
It can be activated by saying the name of the dragon that you want to see, then by breathing smoke onto it. The dragons appear as colored tendrils of smoke, making vision unclear, but voices and background noises can be heard perfectly clearly.
When used, it creates a feeling as if it is pulling something out of the user's heart accompanied by a sick, slithering sensation through the user's blood.
History
Strongwings rescued it from the NightWing's island. The mirror was first used by Preyhunter to check if Glory and her friends care about Sunny, whom they had kidnapped. He states that it didn't work as well as it used to, and that Stonemover may have done something to it before he disappeared.
After she escaped, Sunny stole the mirror and used it to follow her captors to the the desert. To keep it safe, she buried it in the sand before entering the Scorpion Den, following the Nightwings. In the epilogue, Sunny tried to retrieve the mirror but she couldn't find it. Whether it had been stolen or swallowed by the sands is unknown.
Darkstalker might have enchanted it or a device similar to it when talking to Moon.
