He knows Izzy, though, at least he used to. Been a long time since he could fool himself into believing he knew anything, beyond how to survive a mutiny and where he'd stashed the last of his rum. But Izzy...
Jack knows Izzy the way he knows his own right arm. A constant presence, something you never think twice about until it's gone. Well, he's had a long damn time to think twice. That's why he didn't hesitate when Izzy asked him for help.
