“Are you ready for an adventure? An adventure like you've never had before?” With that question, the vivacious Rosanna Sands draws German businessman Peter Berg into a search for her missing friend, a turbulent trip that sends the disparate twosome on an unexpected journey across Europe. In one illustrious setting after another—London, Rome, Madrid, Vienna—they encounter all kinds of inscrutable characters, hidden signs and mysterious symbols as they draw ever closer to discovering the real reasons for the woman’s disappearance. As the pieces begin to fall into place, many things suddenly begin appearing in a completely different light, until they find themselves questioning almost everything they once knew about the world… and landing squarely in the sights of those who will stop at nothing to prevent the truth from coming out. Will they manage to escape the shadow of danger and find the answers they are seeking? Or would those answers represent a more shocking breach of taboo than even Galileo’s 1633 claim that the Earth revolves around the Sun?

Shortly after a photographer in Central Park unexpectedly witnessed a mysterious document handover, he is shot in cold blood. The photos are pure dynamite and must by no means reach the public. Almost at the same time, a woman for the first time rises into the leadership of a criminal organization and prepares for a fatal terrorist attack. In her carreer, she has gone several times over dead bodies and her new plan puts everything that has gone before in the shade. Innocent people become murderous tools and drive the world to the brink. The powerful masterminds are warned. Is it still possible to stop the evil forces which are at work here? Six years after the spectacular opening with Operation Solstice Ten follows the suspenseful second part of the Triangular Files trilogy The Salamander Cascades, leading the protagonists Peter Berg and special agent Rosanna Sands into the incredible entanglements of a far-reaching conspiracy in which the world will hold its breath...