Logos is a Lawful god. He is brother to Harth, god of Fire. He teaches his followers to reason their way through situations and develop quickened thinking skills. Priests of Logos often have ways of seeing into the future or determining what their next step should be, as Logos guides them to do what is most logical.
There is one main shrine to Logos, and that is due east of Ostea. It is there that the Osteans worship Logos and train their priests and paladins in the ways of reason. King Markus was trained at the Shrine to Logos as a holy defender.