Deciding to remain in the dark, the three men and their horses begin the tedious but trecherous advance up the rocky hills. Luthal leads the move ahead... being surefooted and able to see in the dark... and he constantly warns the two behind him of any upcoming problems or dangers. The other two also try their best to search out for any problems in their way and move gingerly over or around them. After the first 30 minutes of nighttime hiking...
Luthal - Search +0 / Balance +0
Zook - Search +4 (+8 - 4 for darkness) / Balance +7
Kolarred - Search -4 (+0 - 4 for darkness / Balance -6 (-1 - 5 ACP)
Horses - Balance +1
The marching order is Luthal, Zook, Kolarred. Every half-hour each member will make a Search check (whose DC will increase as the night wears on). For every successful Search check to find the loose terrain, the characters behind have their DC dropped by 2 points due to alerts and heads-ups. For every failed Search check, a character will have to make a Balance check of DC 10 plus the amount of the failed Search check or trip and fall taking a d6 worth of damage. Each horse also will take a flat Balance check of DC 10 if it's owner saw the poor footing and succeeded in his Search roll, or DC 15 if he failed his Search roll. Each check failure causes the horse a d6 of damage. These checks will occur continuously every half-hour until the party stops for the night.
Luthal ((Search [10] + 0 = 10 / DC 10)) *SUCCESS*
Horse ((Balance [17 + 1 = 18 / DC 10] *SUCCESS*
Zook ((Search [2] + 4 = 6 / DC 8)) *FAILURE* ((Balance [20] + 7 = 27 / DC 12)) *SUCCESS*
Horse ((Balance [13] + 1 = 14 / DC 15)) *FAILURE* ((Damage [2]))
Kolarred ((Search [16] - 4 = 14 / DC 8)) *SUCCESS*
Horse ((Balance [2] + 1 = 3 / DC 10)) *FAILURE* ((Damage [3]))
...they manage to get a little ways up the mountain with no real problems. Zook missed a loose rock that spurted out from underneath him, but he was able to regain his footing before falling to the ground. The horses behind him were not so lucky, and both Zook and Kolarred can sense it each time their steed steps incorrectly and jams itself on the terrain.