At that moment, Selina reminded another relic of Bastet. It was Egyptian crown. She hae tried to steal it too, but she gave up because to get to it, she had to go through a vent which is too narrow for her to pass through. However, now she can be a cat and the vent was large enough for a cat to pass through.
As night falls and the museum closes, she possessed Cleo and sneaked into the museum. As she got nimbler and slimer literally like a cat, sneaking got much easier than before. After arriving in front of the vent connected to the room with the crown, Selina took off her necklace and opened the vent grille with her hand and her skill. Quickly opening the grille, she again possessed Cleo had been waiting by her side for a while, and entered the narrow vent.
The way inside the vent was complicated and dark, but she memorized the route perfectly and got cat's eyes to get the destination easily. She opened the vent grille by pushing it up with her head, and finally spot the crown of Bastet. It looked like it was made of gold, and it had cat ear decorations on it.