The rising tone of panic in these messages convinced Broome and every other recipient that "Tirpitz" was approaching. Since the first of the messages was not directly addressed to Broome, he was not immediately aware that the cruisers were withdrawing. In fact, although they should have been out of sight of the convoy, because of navigational errors they were clearly visible as they worked up to full speed. Convinced that the cruisers were about to engage enemy ships, Broome collected the miscellany of destroyers in EG1 and attached them to the cruisers, while the convoy scattered.