The next few weeks flew by quickly for Eldrian. In that time, he and Vivian had learned a lot. Having found the strengths and weaknesses of what they had dubbed Greater Sense.
As it turned out, Vivian really could only hone in on one person's lifeforce at a time. Any more and their lifeforce wouldn't be visible to her, only the one she had focused on.
They were unsure why, especially considering the ghosts, aka, lost souls, she could see were all different people. They assumed it had to be something like her tuning into the frequency of their lifeforce.
Similar to how telepathy worked. With telepathy, having someone in your sight also helped create the connection. As if a visual confirmation allowed one to better tune into their thought patterns. It probably did.