An English tourist and his companion find themselves entangled in a lethal conspiracy while trailing a gypsy pilgrimage through the French countryside. Neil Bowman and Cecile Dubois initiate an investigation after noticing a pattern of suspicious deaths surrounding the annual gathering of gypsies in Provence. As they track the caravan and attempt to identify the true motives of a wealthy benefactor, they face escalating physical threats and constant surveillance. The narrative follows their desperate efforts to survive while uncovering a hidden agenda that reaches far beyond the local festivities.

This novel reflects the characteristic style of Alistair MacLean, emphasizing rapid pacing and a focus on external threats rather than internal character development. The premise suggests a classic suspense structure where the setting serves as both a backdrop and a catalyst for the unfolding mystery. Readers likely find the interplay between the cultural pilgrimage and the underlying criminal conspiracy to be the primary driver of the narrative tension. The work functions as a standard entry in the author's bibliography, prioritizing plot mechanics and the constant threat of discovery over complex psychological exploration.