 Eager to support Pym's attack, Rowley immediately set sail in his frigate HMS "Boadicea", with the transport "Bombay" following with two companies of the 86th Regiment of Foot to provide a garrison on any territory seized in the operation.The headwinds were strong and it was not until 29 August that Rowley arrived off Grand Port, having been notified of the situation there by "Magicienne"'s launch the previous day.Sighting a cluster of frigates around Île de la Passe, Rowley closed with the island before turning sharply when "Vénus" and "Manche" raised their colours and gave chase.