Seeing that it would be hard to stay unnoticed while going further, Leylin will return back and crosses the stream. With hand gestures he will indicate for Sariel to not follow him, knowing that she's only one that can see him from the group. Not waiting for the reply, Leylin will sneak forward and approach the bridge, following the same pattern of "two steps - stop - listen and look around".
OOC:
He will approach the bridge and tries to go underneath until he can peek around the corner to the east.
Do I need to roll something?