The Sentinels is the name given to a freebooting group of adventurers who sail the depths of Wildspace hunting pirates. Depending on who one talks to, they are described as dangerous vigilantes or as the benefactors of spacefarers, and are a founding member of The Triad.
Nobody knows very much about how the Sentinels came to be. There are many conflicting rumors concerning their origins, but if anybody knows for sure – the Sentinels themselves, for example – they are simply not talking. Some claim that the Sentinels are pirates themselves, wiping out all competition in the Greyspace crystal sphere before going into business for themselves. Others say the Sentinels were pirates, but saw the error of their ways and are now trying to expiate their guilt by wiping out other pirate groups. Still others say the adventurers are the survivors of a ship savaged by pirates, extracting vengeance for their dead comrades.
Similarly, nobody knows if the Sentinels have a base of operations in Greyspace, or where it is. Again, many suggestions are bandied about; Raenei, The Grinder, Greela, even The Spectre, but there is no hard evidence of any of these.
What is known is that the Sentinels have wiped out at least three of the smaller pirate bands threatening space traffic, and are the only adventurers to have ever destroyed one of the dreaded Black Company’s vessels, heavily armed Hammership. Several times they have come upon a pirate attack in progress (leading to speculation about their sources of information) and driven off or destroyed the attackers, saving the victim ship. In no cases have they asked for any reward, although they do accept payment voluntarily offered.
The leader of the Sentinels, Trane Karagani, is a human who sails with a heavily modified Octopus spelljammer.