After coming out of the gate, Elena found herself in the same location from where they had entered the trial arena. Even though Rosalie was unable to move her body even a little bit, she was still conscious at least. So she was able to communicate with Elena and Azusa through mental messages and was also able to order her newly captured monsters.
The mansion where Rosalie was staying was quite large. So it had no trouble in accomodating these few monsters. Even though their sizes were on the larger side, it was not a problem.
After that, Elena carried Rosalie to her bedroom and tucked her in. Then she told her to rest for the time being. But Rosalie did not do so and told Elena to stay with her for a little bit longer. And the reason for that become clear very soon.
