The storyline followed wealthy Patricia Gregory as she ended her 14-year search in the South Pacific for her long lost daughter Joan.
In the opening episode, she receives a tip about a white girl living on a mysterious island populated by scientifically advanced people in the Pacific.
Crandall, who had acted in stock companies in the 1920s, was a continuity writer in the early 1930s for Hollywood station KNX, where "Magic Island" was first presented in 1935.
[2] He was with San Diego station KBD just before moving in 1937 to Atlas Radio Corp., Hollywood, when it placed Magic Island in syndication.
[3] Atlas released the series in that year's transcription-syndication catalog and it continued in trade paper syndication listings for Radio Producers of Hollywood well into the 1940s.