Skalisss activates his sunrod and it's golden yellow light sweeps across the shrine chasing the darkness to the corners of the chamber. With the new light it becomes apparent that the unusual green mist is clinging to the dead bodies of the gang that you have previously dispatched, only Tomas' body is missing.
Standing next to one of the braziers, Skalisss notices that they are filled with wood ash as well as coals, suggesting that something has recently been burnt there.
[sblock=Arcana DC 18]The mist is most likely a symptom of a weakening of the planar barrier, these men must have been somehow tied to a different plane of existence, whether that connection was a physical one or a metaphysical one is impossible to tell.
[sblock=Arcana DC 22]The magical energy of the mist has an an unnatural aura that is reminiscent of the far plane, an alien plane that exists beyond the reach of the gods and titans both, and some say even beyond their ken.[/sblock][/sblock]
[sblock=Nature DC 15]The ash is the remnants of a small sack of herbs and a fine mineral dust.
[sblock=Nature DC 18 or Alchemy feat]you recognise three of the herbs that have been burnt, together they would have had a very strong euphoric affect on the mind of anyone that breathed in the smoke. The mineral powder would have acted as a catalyst and would have helped disperse the offending smoke into the air quicker.[/sblock][/sblock]
After the group have been looking around the chamber for a few minutes, one of you looks up and notices a translucent hooded figure standing in one of the dark corners of the shrine.
[sblock=Ceryx Only]You immediately recognise your mentor; Thalia.[/sblock]
The figure's feminine chin moves in the darkness of it's hood and you all hear it's eerie whisper clearly.
"Your friend is in need, they have left her by the nine headed serpent."
It's message delivered, the figment quickly fades and is gone. leaving you each wondering if you were the only one to see or hear it.