Like Jade, who was the favorite sulfurous of the Sultan of Istambul before becoming his aiule, Kim Nelson now holds the magic power that will give him the secret of a fabulous treasure gone as if by enchantment. This sesame opens, at the edge of a desert, a very strange vault room. The disturbing and tumultuous epilogue of a quest for identity full of enchanting hazards and a hunt for the perilous treasure.