Help! image - girl in forest I need for an annual report cover disappeared!

Hello. I pitched a cover image awhile ago to the client that they are expecting to be at the printer now, and when I went to get the high res images this image I had on the cover is GONE! I have looked everywhere thinking maybe the artist put it on other stock sites. This really is a disaster to contribute images that we use in layouts and then take them down. I am stuck having to tell the client that we have to change the cover after all this time. I typically don't pull my high res images until right before it goes to the printer to keep the file size down, and in case there are any edits/image changes. Now, I guess I have to download and liscense an important image right away! The image I need is of a teen girl in a forest of green trees, looking up towards the sky. She is wearing an army green colored coat. The image number is 765386901 if by chance the artist reads this! Hoping somone can help.