And now a very rapid calculation: the ground-floor soldier was his. All that was required was a small movement of the trigger finger. As for the one above, if this Jock had a weapon in condition for use, then Rufus MacIan was about to be shot, no matter what he did; and if he tried to raise his musket-barrel and draw a bead on the new lad, he would probably miss. So he pulled the trigger.