"SCP-055," Marion says promptly.
"There is no SCP-055," Clay retorts.
"Again: Yes, there is," Marion says.
"There isn't," Clay asserts. "SCP numbers aren't assigned sequentially. There are gaps. That number hasn't been assigned. It's not superstition, we have enough to be concerned about without arbitrary numerological mysticism. We have SCP-666 and SCP-013. But there's no SCP-001. And there's no SCP-055."