Upon hearing the voice behind him, Lin Fei was startled.
Someone had appeared right behind him without him sensing it at all—this was truly extraordinary!
Although Lin Fei's Soul Sense probing range was severely suppressed, his soul power had reached the general domain. Within his effective probing range, not to mention a person standing behind him, even a speck of dust invisible to the naked eye drifting slightly would not escape his perception.
Chapter 729