 The largest known group of Robinsons was composed of approximately 37 people under the leadership of Roman Fiszer and medical doctors , Dr. Beer and Prof. Henryk Beck . Beck was the director of a makeshift insurgent hospital during the uprising . As it became clear that the insurrection was going to fail , he and Cpt . Władysław Kowalski , a Home Army soldier who also decided to stay , converted two adjacent basements into a well @-@ equipped and -supplied hiding place . The group stockpiled water , coffee , medicines , fuel , and various foodstuffs . Additionally , Beck kept a set of watercolors , crayons , ink , and paper , which he used to illustrate life in the bunker . As some of the members had fought in the uprising , the group also possessed a small cache of weapons , unusual for Robinsons . A dog , Bunkierek ( " bunker puppy " ) , also stayed with them and , according to the memoirs , did not bark or make any noise . 
