John is describing the world tour where him and George went around the world looking for answers about George potentially not having his soul. It's not every step that they went through, but the ones that John felt he was risking his life on. Here's links to each of them that he mentions: The serial killer Then the boat sank We got swallowed by a whale only to be rescued by a ghost ship The French revolution The Swiss guards at the Vatican Trapped in a maze with a minotaur Mummy court Acts of God The infection I got swimming in the Ganges river Frostbite in the Himalayas The blind, bunny vampires The prison riot Kaiju making sweet, sweet love to our airplane The plane crash Giant monkey turds Alien abduction-- not to mention the anal probing Nazi treasure hunters and booby traps And the crazy, doll cult Also, the reason George sold his soul to Hell was to save Zoey from becoming a zombie.