As the CS whisks Timothy off in a flurry the team toys with the idea of giving chase, but the size of the enemy and the presence of a Death's Head Transport and air escort coming to pick them up makes chasing impractical - and stupid. Although neither of those considerations have hindered the 1st SET before. Before they can really debrief the revelation that Timothy was connected to the CS or investigate the cave much further, their radios bark to life - Walcott is on the other end losing her mind. The CS must have been jamming radio communications to mask their presence in the area.
"Where the hell are you guys? Some weird shit is going down here in Silverno. Oh, and your boss just showed up!"
Then there is Walcott, she is obviously distressed. Pulling the team away from the happy reunion scene she gives them a quick debrief. "Looks guys, something really freaky happened while you were gone and I couldn't reach you so I paid a Shifter to open a communications portal back to Castle Refuge. Now we got Elle of the Owls herself here along with some others legion types."
Before anyone can ask too many questions the caravan leader just signal them to follow her. She takes the group into the back of one of the big cargo haulers toward the slab of volcanic rock that encased Fell, their fallen leader. Elle of the Owls is standing near the rock, along with someone else, staring at it intently. As the group approaches they can see the rock is empty! It appears someone clawed their way out from the inside!