Dhruv was on the verge of attacking them when he heard that the lady knew about the Mark of Asteri. However, he managed to calm himself down and allow his rational thought to take control of him once again.
'How could she know about the Mark of Asteri? Did she plant a spy on the island? No, that isn't possible. Could she see our status menu? No, this wouldn't be possible either; we were so far away from her, and that monster near her didn't have the mark. Then, how could she have known?' Dhruv pondered. He began to eliminate one reason after another knowing those weren't possible in this circumstance. He looked at the trio for a split second before tilting his head in denial.