Eiro sat there, basically dead, as he looked at the being that had caused this event. Clearly, none of the others here around him could see the creature made of black smoke and wood standing in front of him. Some of them did seem to notice that something was suddenly wrong with Eiro, however. One of them being Bavet, of course, who was realizing that Eiro suddenly didn't have a pulse.
Unsure what to do, and of course not wanting to reveal Eiro's secret, he simply started trying to give Eiro a heart massage to 'resurrect' him. Jess had also realized that something was off, since Eiro suddenly went silent. She was sitting right in front of him, so she had a clear view of this unexpected change in his behaviour.