Tridibendra had sought the services of Byomkesh and Ajit to recover the diamond but also requested the utmost secrecy, since he didn't want the press to get wind of this loss. Byomkesh and Ajit returned to Calcutta and checked Sir Roy's house in Ballygunge. The house was very well protected by high walls and a number of guards. Both Ajit and Byomkesh then applied for the post of a secretary to Sir Roy but were detected by the latter and thoroughly humiliated. Not one to lose heart, Byomkesh still boasted that he would find and recover the diamond by the end of the week to which the arrogant Sir Roy took immediate offence. Sir Roy then offered to let him search the house for seven days because he was so confident it wouldn't be discovered. Byomkesh immediately took up the challenge because he realized that this might be the only chance to examine the house and he had already inferred that Sir Roy had hidden it there.