"Yes, that should do, Rider."

The homunculus tensed at Archer's words. The Servant had opened, gone through and closed the door, and moved behind Rider without the homunculus ever realizing.

On the other hand, Rider showed no surprise and seemed to have known about his presence. He turned his head towards Archer standing behind him.

"You think so, too, Archer?"

- Vol 1 Chapter 3