A moment later, the ground trembles a little, and the sound of distant explosions rumbles through the air!  Then Captain Maroon and Kirrachip see Mister Dimity,<em>Goshawk's</em>off-duty 'jack-of-all-stations', burst inside.<br/><br/>"Captain!  Captain!  The Impies are attacking!  We've got to weigh anchor before it's too late!"