Unseen Protector

After confirming that Cassian Kensington had fallen into a deep sleep, Viviana Thorne got up and moved.

The floor where Professor Galloway was located was just above this one.

Last night, she had already familiarized herself with the layout of the entire apartment.

The ventilation ducts between each floor were interconnected.

She only needed to climb up through the ventilation ducts below.

However