Frances
His pupils widened to adjust in the darker corridors below, allowing him to see as clear as if it was daylight. Meanwhile, his very form blurred in the shadows except for a black smog that begun permeating his body. The claws on his fingertips began to seethe in stygian flame; to an observer, Ashnard's current visage resembled a vengeful wraith than anything remotely mortal or humane- an aberrant black light that moved into the dim halls in search for prey. "I will take the south path, you go west. If you find guards or prisoners, I presume you know what must be done," He spoke with a raspy growl that mirror his ghastly appearance.
Jack
The lack of light was no problem to a man of the shadows such as 'Magnus'. He had experience in the dark - and with his sixth sense, his plan was to feel - not see. 

With the wolfman beginning his journey, Hikari nods as he speaks softly, twisting his body to the right. "Of course. I'll follow your steps once I'm done."

He slips his way to the stairway wall, peering over it down the corridor softly. He'll have to rely on bouncing shadows. Wouldn't this be eastern? Well it depends which way they came in - he supposes - perhaps there's a compass under all that fur. He slips his one-handed shotel off of his belt, the dark blade not glimpsing off the light. Here's to hoping he doesn't need to use it to see round any corners with a reflection.

He begins to make his way down the dark corridor with quiet steps.
Lawrence
*The two would move unnoticed through the dimly lit prison. Even though It was dimly lit in some corners of this underground prison, other places where the candles and torches stood would be lit enough to notice these two intruders*

*Ashnard would be able to see the Guard just in time. Seems he was on, lookout in the main entrance. Wasn't paying much attention, but it would be enough to spot Ashnard if he did decide to continue into the light, which would easily disperse the aura from his abnormal body. The sent was jumbled up with the stench of despair and unbathed bodies.*

*Hikari's snooping around the corner would reveal a place of rest for these guards it seemed. Here was a little darker than what Ashnard was experiencing. Here lied only two guards. One removing his armour, whilst the other was sleeping soundly on the bed. Seemed like these two had a hard shift with their now temporary inhabitant of this dark and gloomy domain.*
Frances
*Another feeble-minded fool to get through. How jolly,* Ashnard thought, rolling his eyes. Now, to toy with their perceptions of reality once more in a manner that wouldn't cause mass hysteria...

An illusory shade this deep into the prison would be certain to raise mass alarm, as would any suspicious noise he feigned. But a scent... Perhaps for these creatures with so weak noses would be just subtle enough to make use for his goals. And so he remained in the shadows and focused into conjuring another illusion, this time as a false scent around the mage guard's vicinity: a pungent waft of burnt wheat and barley certain to make his own nostrils each but also alarm the guard on a potentially devastating prospect- that their food storage had caught fire... Or just the cook had an accident. There would be one way to find out, of course, and it didn't involve standing in their position. 

Ashnard focused his ears to hear the guard's reaction before hiding behind some nearby barrels for good measure; far enough to hide from sight but also close enough to assault the guard should they raise an alarm greater than anticipated.
Lawrence
*The man would have irritation written on his face as he smelled the sent, But he would not move even an inch. The cooks must just not care what the prisoners ate. What ever the case. It was non of his concern. He doesn't know anything about cooking anyway.*