Thor (The Mighty) Vol. 1 Issue 172

"The Immortal and the Mind-Slave!"

Thor returns to his office to find someone inside waiting for him, unable to enter through his usual window-way entry, Thor climbs his office building and changes into Donald Blake on the roof before entering his office through the main entrance. As it turns out it is Jim North, the doctor whom Jane Foster has been working with since she left Blake's employ. North has come to tell Blake that Jane is in danger and hands him a letter written by ruthless billionaire Kornin Krask.