Surveillance and Paranoia

Lanyard is constantly watched by Scotland Yard, the Préfecture de Police, secret agents, and criminal rivals like Bannon and Popinot, forcing him to employ elaborate deceptions, disguises, and escape routes in a cat-and-mouse game of pursuit.

Lanyard is constantly aware of being watched by Roddy, the Préfecture agent, and a runner; he takes evasive actions.

Lanyard is acutely aware of Roddy's presence and dissembled interest, and feels his own actions are being watched.

Lanyard chooses his room to spy on Roddy, suspects Roddy may be feigning sleep, and returns stealthily to check his room, highlighting mutual surveillance and mistrust.

Lanyard's careful inspection of his room and listening to Roddy reflects his constant vigilance and suspicion.