Darius had decisively walked away in rage, not knowing what to do to save the poor Omega. Sancho was just a nanny to the kids, yet he suddenly became a soldier to protect them. It was not just one child that he tried to save. Darius could only imagine the kind of guilt Sancho might have had if Vivienne had been taken and Dylan had fallen from the sky, just because he chose to save Adrian from being mauled.
With these in his mind, he didn't realize that he had walked into a place that exuded a scent where he found it safe to break down. When he came to, he had already pushed open the door of Nicholai's room. It was huge and shrouded with so much energy from the plants inside.
However, it still reeked of Nicholai's scent.