The mage can see ghosts and souls in Twilight when using Active Mage Sight with Death. Her Peripheral Mage Sight reacts to even the passive presence of ghosts.
The mage detects ghosts and deathly Twilight phenomena with her Periphery, and can automatically see souls and ghosts in Twilight with her Death Sight. If a ghost is using a power to hide, it provokes a Clash of Wills.
With the expenditure of one point of Mana, the mage can interact with ghosts for a scene. She can speak with them, touch them, and even strike them. However, this renders her vulnerable to their attentions, as well.