From Board Game Online Wiki

Mirror is a random event that can only occur during games created on Friday the 13th.

In the event, you receive Broken Glass and receive the Bad Luck Debuff for 2-3 turns.

Event Text[edit | edit source]

Upon encounter:

You broke a mirror! On Friday the 13th!

You pick up the broken pieces of glass and take them with you, but you have bad luck now...