Rosencreutz was forced back inside the hospital.
It wasn't a mysterious barrier or a never-before-seen ultimate attack spell.
It was no more than a 45cm piece of plastic.
An isosceles triangle flew just outside the window. It was a Snakehead drone and it wasn't alone. A large group of them flew together like a flock of starlings or bats. The writhing mass of machines looked like a black serpent flying through the sky.
These were by no means elite crafts. All they did was locate their target, ignite their solid fuel, tackle their target at high speed, and detonate their internal explosives.
But they had still stopped Rosencreutz's escape.
These were only mass-produced weapons, but CRC was only human. If he didn't respond in some way, his body would be obliterated and he would lose his life. This wasn't a decisive blow, but it still forced him to respond, limiting his options.