However, the hypnotism left Marlena’s psyche open to a demonic presence, which took over her body.
During the possession storylines, Marlena was truly creepy.
Her eyes would turn a bright yellow and her voice would change (viaSoaps).

Marlena even nearly killed Stefano during this time.
Finally, those close to Marlena started to figure out what was happening and they rushed to help her.
John was unsure about what to do so he called out to God.

