Rule-of-Three is a well known githzerai information monger who owns and resides at The Styx Oarsman in the Lower Ward of Sigil.
Some characters may know that Rule-of-Three is not actually a Githzerai but actually a disguise Cambion. In the past he has been quite friendly with the PCs as they were essential to his father’s plot in the Demonweb. Rule-of-Three is above all an information monger and profiteer.
He always says things three times or in three different ways, always giving three answers to any question and three solutions to any problem.