By HOLT MARVELL
FOR the desk-slave, Saturday ia the day of adventure as well as of release. As routine ends, romance begins, and midday Saturday opens the door for a brief glimpse into the glamour of strange and unfamiliar things. The hero of ' Six Strange Saturdays ' did not leave his romance to chance; he advertised his willingness to undertake any mysterious or desperate adventure on Saturday afternoons. Tonight will be told the s.tory of whither the first advertisement led.