Scandisk Micro Cruzer help

My fiance drowned earlier this month.  He was writing his 3rd book.  He wouldn’t let me read his books until they were finished so I downloaded this book as well as his 2 other books and alot of pictures.  I cannot find these items on my Micro Scandisk.  Someone, please help me find this information. His parents took his computer and of course they live out of state so please please someone help me find these files.