Nula wasn't a ranger or a thief; she was a magus.
While she had a deep understanding of spells, her capabilities were limited beyond that realm.
Frowning in thought for a few seconds, Nula decided to try using her mana sensing.
Mana sensing is always reciprocal; releasing one's sensory perception means other magi have the opportunity to capture your mana sensing, thereby potentially pinpointing your location.
Although Nula was here for a confrontation, unnecessary battles were best avoided if possible.
She mobilized her mana, slowly expanding her mana sensing.
Her expansion was deliberate, aimed at sidestepping any potential traps.
Mana sensing isn't as direct as visual observation, but its advantage lies in detecting what can't be seen by the naked eye, much like radar, easily uncovering secrets hidden in the details.