Mortal Confines

Soul travel, claimed by some, but still unproven in scientific circles. Critics abound, but to Carl Belmont it provides him a distinct advantage. His ability to go anywhere and be undetectable has become the greatest tool the government has to monitor potential threats. After years of being invisible and invincible, he now faces his greatest threats from forces he never could have conceived of.
In the physical world, killers and spies look to make his spiritual journeys permanent.
While in the spiritual plane, a former human foe looks to destroy him and his mission.