In "A Strange Statuette", you go after a Darien statuette, then decide it needs to be disposed of so it doesn't fall into the wrong hands and get used as a weapon against pirates. You decide to throw it into the sea. Do you throw it: (a) overboard in the middle of the sea far away from any island? (b) off a high cliff? (c) off a pier into shallow water where it can be found by any small child swimming in that area? The last I heard of a previous attempt to dispose of a mystical artifact by dropping it into water didn't end too well; in the end an expedition had to be sent to drop the artifact into a volcano.