Keenan instantly made a portal that would take him to the following trees as soon as Lady Sevyn passed the tree he was atop. It was very taxing. It takes a lot of magic and works to spy. Additionally, continuing to stay in the same spot where Sevyn stayed and vanished was wearing down his magic, so he was compelled to relocate a little further away. Along with improving his hearing and vision, he needs to focus on portals accurately. He needs to make his mana slow in flowing in his veins by slowing his breath to avoid the mysterious man to notice him.
He had no clue, but as soon as he approached that location, he felt powerful, dark energy surround it that made him back away. He had to do it to keep his plan from being jeopardized. He refuses to identify himself, and judging by the strange man's appearance as he emerges from the shadows, he was not an ordinary man.