In fact the bamboo flute which Funamushi had given him was famous fue Arashiyama, a treasure which had been passed down in the Chiba family but had been lost, and Funamushi reported to the Chiba family that Kobungo had stolen it.
船虫から渡された尺八は、かつて失われた千葉家代々の家宝、名笛嵐山であり、船虫が「小文吾が盗んだものである」と申し出たのだ。