Mr Utterson is frustrated by the will he holds for Dr Jekyll, having now realised the scandalous nature of the person who would inherit the entire estate in the case of Jekyll's disappearance: Mr Hyde.

Utterson decides to find Mr Hyde, and starts with his old friend Dr Lanyon. But Lanyon didn't know Hyde at all, and had not even been much in touch with Jekyll. Besieged by questions,  he sleeps badly with dreams of Hyde. Waking, he decides he must set eyes on him, and begins his own investigation. "If he be Mr Hyde", he says, "I shall be Mr Seek".

He loiters at all hours around the door he heard Mr Hyde went into during the incident described to him by Mr Enfield, and finally, he is rewarded. "My Hyde, I think", proposes Mr Utterson.