1981. Hubert Bonisseur de la Bath, aka OSS 117, is back. For this new mission - more delicate, more dangerous and more torrid than ever - he is forced to team up with a young new colleague, the promising OSS 1001.
Five gigantic sinkholes have recently been discovered on a remote plateau on the other side of the world. A team of experts has made the trip to descend into the depths. Among them is professor Georges Lebrun, who has come with his wife.
