S39-Don't be Caught

You are a shapeshifter, the kind of monster that can transform into any form. Now you have received a mission:

You need to rescue the monsters trapped in a supernatural prison. The guard of this prison is an ancient, powerful, diligent, but rigid individual. He patrols the prison every day in a specific order, and if he detects any unusual activity from the prisoners, he will trigger the alarm.

You are alone and absolutely no match for the guard, even if all seven monsters combined are not his opponents. Fortunately, a nameless friend has hacked into the prison's security system and provided you with a chance to teleport each prisoner once during your operation.