Retrograde - a sci fi classic adventure

His job was simple.
Wake up every few months for his shift on the decades long journey to Proxima.
Until he read the note.
One of them was going mad.
Now routine maintenance means staying alive and only if he believes the message.
Or did he write it to warn himself?

Fans of fast paced classic science fiction are going to enjoy this quick romp through space that has an Instersteller feel.