So Long, and Thanks for All the Fish, read by actor Martin Freeman, is the fourth instalment in Douglas Adams' bestselling Hitchhiker's Guide to the Galaxy 'trilogy'.
Just as Arthur Dent's sense of reality is in its dickiest state he suddenly finds the girl of his dreams. He finds her in the last place in which he would expect to find anything at all, but which 3,976,000,000 people will find oddly familiar. They go in search of God's Final Message to His Creation and, in a dramatic break from tradition, actually find it.
Praise for audio edition of The Hitchhiker's Guide to the Galaxy:
'By turns authorative as the narrator, bemused as Arthur Dent, deadpan as Ford Prefect and manic as Zaphod Beeblebrox' The Times