The long dark tea-time of the soul by Douglas Adams hardcover 1988

When a passenger check-in desk at London's Heathrow Airport disappears in a ball of orange flame, the explosion is deemed an act of God. But which god, wonders holistic detective Dirk Gently? What god would be hanging around Heathrow trying to catch the 3:37 to Oslo? And what has this to do with Dirk's latest--and late-- client, found only this morning with his head revolving atop the hit record "Hot Potato"? Amid the hostile attentions of a stray eagle and the trauma of a very dirty refrigerator, super-sleuth Dirk Gently will once again solve the mysteries of the universe...