The spirit of Ank-Morpork Grand Opera. He doesn’t just wear a mask—he sits in the night of the premiere in Box Number Eight and from time to time kills people. He is also in your soul.
Singers faint right on stage, the organ of the “Cheerful Simpleton” Johnson explodes the night before the premiere, someone hung a strangled man instead of a counterweight, and the prima donna can’t sing. Doesn’t matter. The Show Must Go On.