The SentinelsShartaks first OFFICIAL ghostbusting clan!!! 
The story of the founding of the Sentinels In case you have a thing for background material...
Shaman Rill was lounging around in Raktam as usual. The paleskinned outsiders had been on the island for a long time now. Thanks to this, spirit activity on the island had increased tenfold. An unprecedented amount of hauntings were occurring. People's stuff was going missing more than usual. Bad omens could be seen in the smoke of fires. Lots of spirits were flying about spamming the local healing hut.
Since Rill could see spirits and since he was a squatter in the local healing hut (having no home to call his own), this annoyed him a fair amount. He couldn't get any sleep due to the constant wailing of the irritated dead.
Luckily for Rill, the shamans of Shartak had rediscovered some knowledge of their ancestors. This knowledge was highly useful - but it was labelled as "lost knowledge" after the mass communal native memory loss of '56.*
It turned out that there used to be a group of Shaman known as exorcists that specialised in banishing evil spirits, asking the spirits for a bountiful harvest, making and selling assorted charms and all sorts of other mystical stuff that impressed all their not-so-mystical peers.
The Shaman of Shartak once again had power over the spirit world. Having mastered the ancient exorcism rituals, Rill stepped out of the healing hut for the first time in five months and attempted to take a breath of fresh air. He almost choked after inhaling a large beetle that was angrily flying past. He swallowed the beetle in panic and coughed furiously for a bit before regaining his composure.
Rill took a breath of fresh air.
Many of the other Exorcists wanted to keep their newfound skills to themselves, but Rill decided he was going to be a sell out and offer his skills to the various paleskin groups. For their gold.
Rill looked up at the sky to shout at the heavens. Or at least he tried to, but he had not yet stepped fully out of the healing hut, so he succeeded in only looking up at the door frame of the healing hut. He ignored this fact in order to try and save the moment. He shouted at the door frame,
"I AM GOING TO CREATE A GROUP CALLED THE SENTINELS! WHEN WE ARE NOT SMOKING OR SLEEPING WE WILL PROTECT ALL PEOPLE OF SHARTAK FROM EVIL SPIRITS for the right price. PLEASE GREAT SKY, GIVE US YOUR BLESSING!"
After he was finished, Rill hastily got out of the way of the group of angry villagers trying to get into the healing hut...
* It is speculated that this catastrophic event happened after a WickSick chef from Wiksik introduced some mushrooms he found into the national cuisine. The dish proved highly successful throughout Shartak but highly addictive. Things generally went downhill from there... or uphill, depending on the amount you had consumed... 
