Shattered - Dick Francis

When jockey Martin Stukely dies following a fall at Cheltenham, his friend Gerard Logan becomes embroiled in a perilous search for a stolen videotape.

Logan, half artist, half artisan, is a glass blower on the verge of widespread acclaim for the originality and ingenuity of his work. Long accustomed to the frightful dangers inherent in molten glass and in maintaining a glass-making furnace at never less than eighteen hundred degrees Fahrenheit, Logan is suddenly faced with a series of unexpected and terrifying new threats to his business, his courage and his life.

Believing the missing video tape to hold some sort of key to a priceless treasure, and wrongly convinced that Logan knows where to find it, a group of villains sets out to force from him the information he doesn't have. Narrowly escaping these attacks, Logan reckons that to survive he must himself find out the truth. The journey is thorny, and the final race to the tape throws more hurdles and more hazards in Logan's way than his dead jockey friend could ever have imagined.

Glass shatters. Logan doesn't . . . but it's a close run thing.