Blackstone Theatre, Seventh Street, near Michigan Boulevard, Blackstone Theatre Co. , lessee, directors Charles Frohman, Inc. , Marc Klaw, Abraham L. Erlanger, William Harris, Harry J. Powers, Harry J. Powers, manager, Edwin Wappler, business manager. Charles Frohman presents William Gillette in his four-act play "Secret Service," a romance of the Southern Confederacy, taking place on an evening in Richmond during the war of the rebellion.