In the tea shop.
Oliver and Blake wore puzzled expressions, not expecting what was currently happening.
They weren't surprised by Klaus, in fact, just like Grey, they expected this. What truly surprised them was Grey who was absorbing the icy energy at a crazier speed than Klaus, and from his expression, they could tell he didn't know how it was happening.
Well, either that, or he was pretending not to know how it was happening. But they felt it was the former since Grey wasn't like Klaus who did things thoughtlessly.
"Teacher, should I step in now?" Blake asked.
"No, they should be fine. If Klaus were to be alone, then we'd have watched them rough him up a bit before helping him, but with that boy there, it's impossible for them to be killed. At most, they'll beat them up a bit, and we'll step in," Oliver shrugged before focusing on his tea once again.