Set curses

I have inside-my-head knowledge that Set, the god of evil, planted curses of annoyance throughout the Twenty-First Nome as payback for the Kane Family’s interference in his quest for world destruction. If released one at a time, they would have only minor impact. But Set being Set, he programmed them for simultaneous detonation on his next birthday—December 29, the fourth Demon Day. If these magical ticking time bombs explode as planned, the level of irritation in your sector will immediately jump from moderate to extreme, resulting in anger-induced havoc.

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