The Master Again

Exploration Stage: Red Rose Cafe
From: Detective
Description: This picture of an hourglass really scares me. Games with time again? Is it the mysterious Master from the case with the Organ? I suspect this basement is connected to him somehow as well. But any accusation must be grounded strictly on clear evidence. Find evidence in the Chapel Basement!
Completed: What do we have here? What luck! This is the Lens of Time Diagram! And it has the Master's initial on it - the letter M. The same as on the Station Clock and on the Organ itself! Now we have proof that all these incredible things belong to him.