DEFENDERS (1972) #78

Doctor Strange invites Namor and the Hulk to Tunnel World—and this trip may be a one-way ticket. Dr. Strange summons the Hulk to his Sanctum Sanctorum. The Hulk complies, even if only to get out of the rain. Namor is already there, having also been called. Strange is finally ready to take on the Unnameable from Tunnelworld.…