Alice and Bifana hid in the dark corner of the street alley, where they would wait for instructions while keeping an eye on the building's surroundings.
Duncan and Morris then arrived in front of the building with the black door.
The building was very quiet—naturally, considering the sun had not yet risen, and the world's nights were not typically suitable for the activities of ordinary people. Most normal people had no nightlife after dark and would go to sleep early, waiting for daylight as the norm.
But would the "Replications" returning from the deep sea keep the same routine as ordinary people?
Duncan looked up and noticed the conspicuous button at the corner of the doorframe, so he reached out and pressed it twice.
Faintly, the sharp and urgent ring of the doorbell could be heard from inside the building—in this silent night, the sound was particularly jarring.