Severus has left the Wizarding world and is living quietly as a Muggle boat captain in Dover, UK. He uses his boat to take tourists to Calais until Unspeakable Hermione shows up to ask a favor. Note: "To Have and Have Not" Screenplay written by Howard Hawks and William Faulkner based on the Ernest Hemingway novel of the same name.
The first Christmas after the War is approaching and Severus Snape is still in a coma.
Snape and Hermione in a race halfway around the world.