Double Cross Purposes

The Hon. Vernon Lethaby is a flamboyant, headline-seeking exhibitionist with extravagant tastes and an allowance that barely covers his racing debts. In an unlikely partnership with middle-aged Canadian adventurer Joe ''Digger'' Henderson, he strikes out for the Highlands of Scotland to hunt for Prince Charlie''s treasure, which, according to legend, is interred on the isle of Erran.

But Lathaby do...