One of the three massive presences was a giant dragon with several of its organs replaced with machanical parts. If Elena was here, she would definitely have been super excited to see it.
This being was actually something that Zeta was familiar with. She had seen notes about this dragon in the very first lab that she had checked out.
This dragon was brought to this facility from a legendary grade fantasy world. It was supposed to be a black crystal dragon, which according to the research of the people here had a very high compatibility and affinity for mechanical modification.
And that looked to be the correct assumption. From what Zeta observed, the dragon was managing to live, move and fight perfectly with these mechanical organs. Zeta also judged that the strength of this dragon had actually became slightly stronger than its biological self because of these mechanical modifications too.
