In Darkness Waiting is a science fiction short story by Stephen Leigh.
He eventually settles on a primitive and violent planet, and spends many years recruiting followers and apprentices to establish a Guild of Assassins, known as the Hoorka.
Adopting the title of Thane, he sets up a rigid code that the Guild must follow.
The assassination team, led by Aldhelm, the 'Number Two' in the Hoorka hierarchy and possible successor to the Thane, fails.
Vingi is furious and demands that he and the Thane meet with Madame d'Embry, of the Alliance diplomatic resources team, who are trying to establish a new political unity.