Tristan's first impulse was to rush towards the door, shouting his tidings and imploring assistance. Then, a sudden, almost instinctive dread caught and chilled him. Who was it that came at such an hour? What would any one seek in the church of Santa Maria in Cosmedin at dead of night? Was the church indeed their goal, or were they but chance passers-by? That last question remained not long unanswered. The steps came nearer. They paused before the door. Something heavy was hurled against it. Then some one spoke. "It is locked, Tebaldo! Get out your tools and force it!" Tristan's wits were working at fever pace. It may have been that he was swift of thought beyond any ordinary man, or it may have been a flash of inspiration, or a conclusion to which he leapt by instinct. But in that moment the whole problematical plot was revealed to him. Poisoned forsooth she had been, but by a drug that but produced for a time the outward appearance of death, so truly simulated as even to deceive the most learned of doctors. Tristan had heard of such poisons, and here, in very truth, was one of them at work. Some one, no doubt, intended secretly to bear her off. And to-morrow, when men found a broken church door and a violated bier, they would set the sacrilege down to some wizard who had need of the body for his dark practices. Tristan cursed himself in that dark hour. Had he but peered earlier into her coffin while yet there might have been time to save her. And now? The sweat stood out in beads upon his brow. At that door there were, to judge by the sound of their footsteps and voices, some five or six men. For a weapon he had only his dagger. What could he do to defend her? Basil's plans would suffer no defeat through his discovery when to-morrow the sacrilege was revealed. His own body, lying cold and stark beside the desolated bier, would be but an incident in the work of profanation they would find; an item that in no wise could modify the conclusion at which they would naturally arrive. CHAPTER XII THE DEATH WATCH A strange and mysterious thing is the working of terror on the human mind. Some it renders incapable of thought or action, paralyzing their limbs and stagnating the blood in their veins; such creatures die in anticipating death. Others, under the stress of that grim emotion have their wits preternaturally sharpened. The instinct of self-preservation assumes command and urges them to swift and feverish action. After a moment of terrible suspense Tristan's hands fell limply beside him. At the next he was himself again. His cheeks were livid, his lips bloodless. But his hands were steady and his wits under control.