William was immediately sensible of the importance of the incident. He foresaw that, if he could once gain Harold, either by favors or menaces, his way to the throne of England would be open, and Edward would meet with no further obstacle in executing the favorable intentions which he had entertained in his behalf. He sent, therefore, a messenger to Guy, in order to demand the liberty of his prisoner; and that nobleman, not daring to refuse so great a prince, put Harold into the hands of the Norman, who conducted him to Rouen. William received him with every demonstration of respect and friendship; and after showing himself disposed to comply with his desire in delivering up the hostages, he look an opportunity of disclosing to him the great secret of his pretensions to the crown of England, and of the will which Edward intended to make in his favor. He desired the assistance of Harold in perfecting that design; he made professions of the utmost gratitude in return for so great an obligation; he promised that the present grandeur of Harold’s family, which supported itself with difficulty under the jealousy and hatred of Edward, should receive new increase from a successor, who would be so greatly beholden to him for his advancement Harold was surprised at this declaration of the duke; but being sensible that he should never recover his own liberty, much less that of his brother and nephew, if he refused the demand, he feigned a compliance with William, renounced all hopes of the crown for himself, and professed his sincere intention of supporting the will of Edward, and seconding the ptetensions of the duke of Normandy. William, to bind him faster to his interests, besides offering him one of his daughters in marriage, required him to take an oath that, he would fulfil his promises; and in order to render the oath more obligatory, he employed an artifice well suited to the ignorance and superstition of the age. He secretly conveyed under the altar, on which Harold agreed to swear, the relics of some of the most revered martyrs; and when Harold had taken the oath, he showed him the relics, and admonished him to observe religiously an engagement which had been ratified by so tremendous a sanction.[*] The English nobleman was astonished; but dissembling his concern, he renewed the same professions, and was dismissed with all the marks of mutual confidence by the duke of Normandy.