So... Acquire an old bell secretly. Acquire a mole secretly. Place old bell in a base... behind a chest or structure... not in it... but behind something... hide it from plain sight... Wait for everyone to leave... or make them an audience... Place mole near the old bell... Go as far as you can away from the base... say that you're going to gather resources... Wait for the sound of destruction...Innocence... blame the mole...