Visage of Investigation

For the duration, you can detect the aura of people within a 30ft range around you. Footprints belonging to and objects interacted with by any people not known to you glow with an aura, only visible to you. The aura glows stronger or more faint depending on how recent the interaction, but the spell can only recall the previous 8 hours.

Using an action, you can focus on the actions of a specific person, which changes the aura to a colour befitting that person.