Jack watched with disbelief as the ladder he was holding onto suddenly lost its hold. He fell back down at the same time as he felt a second impact on his Barrier. The energy barrier burst apart on this second impact. Jack lost all its protection as he landed back onto the ground, trapped with a special elite boss who completely over-leveled him.
He quickly jumped to the side and rolled away, in fear of the boss' follow-up attack. He turned to look back at the end of his roll and found that the Ice Troll Sentinel had remained under where the rope ladder used to be. On seeing the monster's weird face, he was now sure that the monster was grinning. He looked up and saw that there was nobody up in the opening, Walter had gone away.
'That prick!' Jack cursed him in his mind.