He died but he gave his wife the gift of a way to live without him. This may be harder than just moving on because she has to do what her dead husband says. But how does she know that someone isn't playing a cruel prank on her? Only it's not a prank. Emmett had a plan to help Bay move on.

Jack Frost was chosen to be a guardian but a new guardian was chosen not too long after Jack. But when The Man in the Moon chooses her; the guardians realize they don't know who she is. So how can they find her? Just ask Jack Frost.