Whoosh!
Without the need to stay hidden like in all the times when Theo dispersed them in the form of a thick cloud, his nanites took on a slightly gray hue, like a whiff of freshly created smoke.
A smoke that coiled like a snake only to decompress forth and bite into the chest of the leader of the assassins, sinking into his body before the man could as much as twitch.
Tap.
The flat of Theo's hand pressed against the man's chest, as if to cover the invisible hole through which his nanites sank into the man's body. And in that very moment, the time appeared to stop.
Obviously, it didn't. Nevertheless, something as simple as the physics of spacetime or the laws of the universe weren't enough to tell everyone around how to act.
Whether they knew what happened or not, they could all sense that something major just did occur.
