Watch The Three Investigators in The Secret of Skeleton Island (2007) HD Full Movie Free on solarmovie.do. Watch The Three Investigators in The Secret of Skeleton Island (2007) online free. Three kid detectives go on an epic journey to eerie Skeleton Island. Once home to pirates, it's now ...Three kid detectives go on an epic journey to eerie Skeleton Island. Once home to pirates, it's now plagued by a mysterious beast.