CHAPTER XXI.

HE AND HIS PA IN CHICAGO—NOTHING LIKE TRAVELING TO GIVE TONE—LAUGHING IN THE WRONG PLACE—A DIABOLICAL PLOT—-HIS PA ARRESTED AS A KIDNAPPER—-THE NUMBERS ON THE DOORS CHANGED—THE WRONG ROOM—"NOTHIN' THE MAZZER WITH ME, PET!"—THE TELL-TALE HAT