An Abrupt and Rapid Increase, Especially in Cost
This page is the CodyCross answer for the clue below from House of Horrors, Group 1103, Puzzle 4 (Musty Books).
Question is: An Abrupt and Rapid Increase, Especially in Cost
and the answer is: SKYROCKET
Word Meaning:
SKYROCKET — A type of firework that uses a solid rocket engine to rise quickly into the sky where it emits a variety of effects such as stars, bangs, crackles, etc.
Definitions from Wiktionary.