Tiaral

In case of elaborate plans, nothing good would come of it.

No, wait, I want to clarify myself.
Could we, while passing through the tunnel to Sharron's palace, hypnotize the aunt (or, alternatively, kill her, take her artifacts, resurrect her, hypnotize her if the artifacts grant immunity), kill the false Sharron (or, conversely, hypnotize him, and kill the aunt), go through the labyrinth, and attack the Fog Banks in their lair?
We could improve the plan, do this during the peak of the unrest in the city, for example, and so on...
Hypothetically, is this possible or not?