After leaving Hazel Kramer's room, William Cole went straight back to his quarters.
As he entered the room, he turned off the lights immediately, then activated the camera function on his phone, using it to scan the pitch-black room.
In the dark, the phone could detect infrared light. If there were any cameras in the room, William Cole would surely find them.
The First Mate of the cruise ship was in cahoots with Hazel Kramer. It was possible that they had installed hidden cameras or eavesdropping devices in his room.
Sure enough, in the darkness, William Cole discovered three spying devices. He collected them all, noting that they were equipped with cameras, batteries, and each had a memory card.
After thoroughly checking his room and confirming there were no more cameras, William Cole dialed the official number of the service provider, waving his phone around the room.
"Zzz zzz zzz——"