Accidentally Disconnected from Drive Containing Images

I recently responded to this Lr message that came up when I opened the application, "Lightroon would like to access images on an external drive."  Allow/Don't Allow?  I accidently responded "Don't Allow", and in less that 20 seconds all images I had in Albums and Folders were removed.  The Folders/Albums still are shown, there just aren't any images in them.  Is there some way to reverse this?  I hope I don't have to repeat the import process over again....needless to say.....tons of images.   Are image addresses/links still in tact and all I have to do is re-establish the drive connection??  Using Lr v. 7.0