Mystery of the Battle Box
Mystery surrounds a locked room within the underground bunker. This room, situated between the Gun Operations Room and the Surrender Conference Room, is out of bounds to all visitors.
In his novel ‘Mystery of the Battle Box’, author Raymond Han attempts a fictional answer to this mystery by creating characters who enlist the help of the spirits of two World War II soldiers — a British and an Australian who are trapped eternally in the underground tunnel — to find the lost treasure of General Yamashita.
Here’s the novel: