“The person who had asked me to do this bought this corridor crystal with all the money he had. He said that he set the prison area of the Black Iron Castle as the exit. So I’ll be teleporting all of you to prison, and «The Army» could cover the rest from there.”
...
The crystal shattered in an instant and a blue whirlpool of light appeared.
...
Kirito threw Rosalia headfirst into the corridor. After she disappeared, the corridor shined brightly for a moment and then vanished. Everything was calm again.