...at a polished-metal haunted house entrance there are ten:
1. a yawning rusty echo through giant cylindrical ducts
2. a tiny tinkle of a tin bell
3. a raspy grating of two steel surfaces sliding against each other
4. a long low humming reverberation emanating from slightly vibrating lead columns
5. a sharp ricocheting report bouncing off curved surfaces
6. a feeble tinny twang from plucked aluminum teeth
7. a startling giant bong when a hollow sphere crashes onto a thin cymbal
8. a rippling and undulating rolling sound for the sphere as it travels across brass
9. a million miniature sparkling spangs when thin needles impact a thick block of gold
10. a silent whoosh from staring at the blackness inside iron helmets