Nieth remained motionless, like part of the corridor shadows themselves.
His years of training had perfected him in the art of invisibility; not mere visual concealment, but the complete suppression of his presence. His breathing, so slow that it barely disturbed the surrounding air. His scent, so light that the best beast olfactory senses would take several minutes to perceive. And his mana, hidden so deep within his core that it didn't stand out even in the city's almost null mana environment.
He observed the three young people and the elderly Ashenway walking away down the opposite hallway. It was time to return and complete his mission... he would withdraw to inform Kharzan of what he had witnessed.
The information about the strange glowing creature would be of particular interest to his masters.
It was then that he felt it.
A subtle change in the density of the shadows behind him. An almost imperceptible shift in the texture of darkness. A stealth as good as his own.