Ghost Mariner - The Warmth of the Fireplace Series, Number Four

The Ghost Mariner is about a woman who wakes up in bed in a strange location, sweating with fever.

She sees the outline of a man as he comes closer and then welcomes him to her bed.

After they make love, he tells her he's the ghost of a long-go sea captain and that he will have to leave soon.

She falls back to sleep then wakes up in a modern hospital room where she hopes she can get some kind of an answer as to what has happened to her.