The three of them scramble on board the ship, tying off the canoe so it doesn't drift away.<br/><br/>A hatch at the bow of the ship leads to the hold beneath the deck. It is nailed shut, but can be pried open with a DC 15 Strength check.<br/><br/>A DC 20 Perception check detects the faint rattle of chains coming from below.<br/><br/>Flare moved over to investigate the bier; the bier is composed of stacked firewood soaked with oil. The pile of sand on the deck is hollowed out and holds an urn of lamp oil within it. A leather bag containing burning coals has been placed over the top of the urn. "This looks like a single spark will send the whole thing up in flame... and this is a bag<em>full</em>of sparks," she said, removing the small leather bag and, after a moment's consideration, tossing it into the water, with a hiss.