The Box with Broken Seals by E. Phillips Oppenheim

THE BOX WITH BROKEN SEALS is a thrilling narrative of Jocelyn Thew and the English Service. The reader will follow with avidity the daring moves of Thew from the time he sails from New York on the "City of Boston," accompanied by a dying man and a special nurse in the person of Katharine Beverley, a society girl who is under obligations to Thew.