Jedao can feel that it's a dead end - but it is narrow enough to shield them, even from the sinuous eel-like shape of the cave creature. He makes a decision, and follows that tug, veering to the tunnel Eiffel chose.

"You first -" Because if it doesn't get tired of waiting and scrabbling at the small entrance - and Jedao would not want to rely on this thing's impatience - he's going to need to deal with it.