Harold found means to convey intelligence of his situation to the duke of Normandy; and represented that, while he was proceeding to his court, in execution of a commission from the king of England, he had met with this harsh treatment from the mercenary disposition of the count of Ponthieu.
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.