Lexis is a great inventor. He hails from Treadool which is near his laboratory.
His biggest contribution to the group is the motor on the ship that Jyad built. With modifications from that,
soon an airship and a submarine emerge. He has a great mind, but tends to push it too far, and ends up blowing up things.
He is an old friend of Dr. Kirmo of Portavia, and when Arty
tells him that Kirmo's laboratory is spurting out waste, he returns to Portravia to stop the problem.