4. THE OASIS SPECIAL
Dusk was falling in the desert town of Eldorado when, on Friday evening, Bob Eden alighted from the train at a station that looked like a little red schoolhouse gone wrong. His journey down from San Francisco to Barstow had been quite without incident. At that town, however, a rather disquieting thing had happened. He had lost all trace of Charlie Chan.
It was in the Barstow lunch-room that he had last seen the detective from the islands, busy with a cup of steaming tea. The hour of three-twenty and the Eldorado train being some distance off, he had gone for a stroll through the town. Returning about three, he had looked in vain for the little Chinese policeman. Alone he had boarded the train and now, as he stared up and down the dreary railroad tracks, he perceived
