Harrison Beck is reluctantly joining his travel-writer Uncle Nat for the last journey of the royal train, The Highland Falcon. But as the train makes its way to Scotland, a priceless brooch goes missing, and things suddenly get a lot more interesting. As suspicions and accusations run high among the passengers, Harrison begins to investigate and uncovers a few surprises along the way. Can he solve the mystery of the jewel thief and catch the culprit...

Following his adventure on the California Comet, artist and amateur sleuth Hal Beck is back and looking forward to another railway journey with his journalist uncle, this time riding the historic Safari Star through South Africa.