[With his new scalpel, it shouldn't be too messy a job. Spy seems content with the idea, nodding.]

Alright. I will create a pat' to the staircase from t'e showers for you to follow by leaving marks on t'e wall or on t'e floor. I will try not to make it too conspicuous, but we do 'ave a time limit.

[It's looking very likely he'll have to make the marks out of the security guard's blood, but he doesn't mention it for fear of sounding too morbid. Or too messy. Blood isn't something easily ignored, but it's not like they carry around pens and using the scalpel on the wall could dull it.]