In a cloth bag. Roll against Explosives to measure out and set a charge. Failure means the sand burns up or scatters uselessly on the first attempt to trigger it. Critical failure means it detonates while the demolisher is preparing it, causing him full (though not maximum) damage! Once set, the charge can be touched offwith fire (requires a Ready maneuver and a DX-based Explosives roll), by shooting it with a firebolt, by tossing a banger on it, or via a fuse. Damage depends on weight.
