Рико and Рэг continue the irretrievable trip on the bottom of Нараку : the Inverted forest remained behind. White Whistle of Одзэн and Blue Whistle of Марулк helped young seekers to prepare to the further lowering. Ahead of them waits Great break a secret is a cliff in four thousands high meters. And yet below, on a depth seven thousands meters, is Bowl of giant, fourth layer. The real dangers begin only now, but together with them our heroes find new friends.