[AS] Get document files within subfolders of subfolders

I’m struggling to find the correct approach to get a string of document files from a series of folders that are within subfolders. Below is my current attempt.


set TheSourceFolder to {"Volume1:ABC Art:ABC Color Art:"} as alias
tell application "Finder" to set subFolders to folders of TheSourceFolder as string
tell application "Finder" to set subsubFolders to folders in every folder of TheSourceFolder 
tell application "Finder" to set subFiles to every document file of every folder in TheSourceFolder as string
tell application "Finder" set thesubsubpaths to the subsubFolders as alias----doesn't work but I know the string has to be converted
tell application "Finder" to set subsubFiles to every document file of (subsubFolders) as string---since the subsubfolders are not seen as file paths Finder can't do this

Thanks for any help!!

Try this

set TheSourceFolder to {"Volume1:ABC Art:ABC Color Art:"} as alias
tell application "Finder" to set theFiles to files of entire contents of TheSourceFolder as alias list