Glory hole 1: The glory hole below me is not a mimic.
Glory hole 2: The mimic uses bold text.
Glory hole 3: The mimic has an even number.
Glory hole 4: I am not a mimic.
Glory hole 5: The mimic has an odd number.
Glory Hole 3 is the lying mimic. However, while there is one mimic who lies, there is also the possibility that the remaining glory holes are honest mimics.