Szent is first to react to Seneia's Yelp of pain, and he sprints across the cavern towards her. With the different types of light from spells and torches, intermingles with shadows cats by the caves natural features it is extremely difficult to see what exactly is happening. He sees Seneia spin around, but from his vantage point he cannot see what she is reacting to.
Weylan also changes direction and immediately moves towards Seneia. He can just see shadows, and Seneia turning with a florish to confront what must be an invisible foe.
Feylinde is closest to Seneia, but is actually focused on reaching the pool, totaling missing what is happening to Seneia.
Seneia feels a sharp pain in her back and immediately know she is being attacked. She spins around immediately to confront the foe she thought she spied earlier. Alas, despite her quick reactions she is surprised to find no one there.
Alanya is trying to apologize to Weylan when the sudden yelp interrupts her conversation. As Weylan runs off she stands there in astonishment, and fails to react.
Rufio is always alert to potential threat. It is the way he is built. He too reacts and rushes to Seneia's aid. He sees her kicking at empty space, and notices a figure in the shadows no where near where she thinks he is. Honing in on the threat he rushes to her aid... (This is 2 movements so no action).
Elden also hears the Yelp and sprints in that direction.
You must all roll perception, including Rufio. I will give Rufio advantage.
End of Round 2
Rolls
Secret Roll