Certain that he could not mistake Sarah's views, the doctor was sorely perplexed. He had three ways before him,--to inform the Grand Duke of the matrimonial project, to open Rodolph's eyes as to the manoeuvres of Tom and Sarah, to lend himself to the marriage. But to inform the Grand Duke would be to alienate from him for ever the heir presumptive to the throne. To enlighten Rodolph on the interested views of Sarah was to expose himself to the reception which a lover is sure to give when she whom he loves is depreciated in his eyes; and then, what a blow for the vanity or the heart of the young prince, to let him know that it was for his royal rank alone that the lady was desirous to wed him! On the other hand, by lending himself to this match, Polidori bound Rodolph and Sarah to him by a tie of the strongest gratitude, or, at least, by the complicity of a dangerous act. No doubt, all might be discovered, and the doctor exposed to the anger of the Grand Duke, but then the marriage would have been concluded, the union legal. The storm would blow over, and the future sovereign of Gerolstein would become the more bound to Polidori, in proportion as the doctor had undergone greater dangers in his service. After much consideration, therefore, he resolved on serving Sarah, but with a certain qualification, which we will presently refer to. Rodolph's passion had reached a height almost of frenzy. Violently excited by constraint, and the skilful management of Sarah, who pretended to feel still more than he did the insurmountable obstacles which honour and duty placed between them and their liberty, in a few days more the young prince would have betrayed himself. Thus, when the doctor proposed that he must never see his enchantress again, or possess her by a secret marriage, Rodolph threw himself on Polidori's neck, called him his saviour, his friend, his father; he only wished that the temple and the priest were at hand, that he might marry her that instant. The doctor resolved (for reasons of his own) to undertake the management of all. He found a priest,--witnesses; and the union (all the formalities of which were carefully scrutinised and verified by Seyton) was secretly celebrated during a temporary absence of the Grand Duke at a conference of the German Diet. The prophecy of the Scotch soothsayer was fulfilled,--Sarah wedded the heir to a throne. Without quenching the fire of his love, possession rendered Rodolph more circumspect, and cooled down that violence which might have compromised the secret of his passion for Sarah; but, directed by Seyton and the doctor, the young couple managed so well, and observed so much circumspection towards each other, that they eluded all detection.