If it was Selena, even if the receptionist had not seen her in real life before, she should have seen her on television or in the magazines.
Hence, he was very sure that the person who sent the clothes over was Serenity.
He passed the clothes to Caleb and asked the receptionist, "Where is she?"
The receptionist replied while trembling in fear, "It's been a while since she left."
Gabriel did not say anything, only walking toward the elevator with big strides. Caleb quickly followed him and pressed the elevator for him. With a "ding" of the elevator, both of them walked in.
When they went up the elevator, Gabriel suddenly said, "Give a call to Serenity and tell her to come to the hotel tonight."
…
When Caleb called, Serenity was sitting at a cafe. The waiter had come to take her order, and she was just about to reply when Caleb called. It was not until she had ordered a cup of cappuccino and the waiter had left did she answer the call.