Not daring to move forward, Eldrian kept himself hidden in the alley as he observed what was going on inside the square. Using Observe on the nearer undead, trying to figure out why the fort defenders were struggling so much to hold out. Eldrian had thought that with divine magic they would easily push out, not be forced onto the defensive.
Observe didn't tell Eldrian much other than that most of the undead were Tier 3 or 4. He had also spotted a few flaming reanimates, some still weakened and with burning flesh. Others just bones encased in bright orange flames, their movements much faster than those with flesh still on them.
Contrasting these burning skeletons were undead that looked like they were covered in shadows. The light from the balls above seemingly being sucked into these undead. Their figures hidden in these shadows and only an outline really visible to Eldrian.