Theatrical Smoke
This page is the CodyCross answer for the clue below from House of Horrors, Group 1110, Puzzle 2 (Rattling Chains).
Question is: Theatrical Smoke
and the answer is: DRYICE
Word Meaning:
DRY ICE — Carbon dioxide frozen in the solid state, which sublimes at −78.5 °C (−109.3 °F) at normal atmospheric pressure, used especially as a cooling agent and for the production of foglike special effects.
Definitions from Wiktionary.