Extending their spirit sense to examine a peer could be considered rude, and some might even take great offense to it. But in the Earth Immortal realm why would they need to purposefully extend their senses? At this range, just their eyesight could gather more information than just sight. When they focused on Lex, mostly out of instinct due to the shocking news they heard, they immediately noticed that he was merely a projection. His real body was not around!
This once again startled them! How was it possible to have such a perfect projection without any trace of the link to the real body? If they had not focused they would not have noticed at all.
Before they could resolve their confusion though a tingle in the back of their necks, a sensation soft and barely perceptible, grabbed their attention. It was a sign of a warning. Their bodies were reacting defensively to something extremely, extremely dangerous!