Sabrina cast a look at the woman, though her vision only allowed her to perceive a vague outline.

A silhouette hovered in the doorway.

She tilted her head to the vague dark shape, squinting at it for what felt like an eternity. Eventually, she discerned it was a person clothed in black.

Could he belong to the family of one of the other two patients?

Perhaps he was the elderly woman's son.