As summer blooms in Edinburgh's gardens and Bertie Pollock's birthday appears on the horizon, all at 44 Scotland Street is not cake and sunshine. Newlywed Angus Lordie has been booked by his bride into what he must not call the loony bin; Bruce's first encounter with hot wax brings more anguish than he bargained for; and Bertie's birthday dreams of scout camp and a penknife look set to be replaced by a game of Royal Weddings and a gender-neutral doll. But fate, an amorous Bedouin and the Dubai Tourist Authority conspire to transport Bertie's mother Irene to a warmer - if not a better - place, and once again in Scotland Street the triumph of human kindness over adversity gives cause for celebration