I really need to find the duet version of "How Could I Ever Know" from Secret Garden ASAP!!!?

I already have the first part (just Lily's part) but I need to find the second part (the part where Lord Craven comes in) as soon as possible! I did not think it was going to be so hard to find. Or maybe it's not and I just don't know where to look.

Does anyone know? Preferably something I can pay for and just print, but if not, that's fine. As long as I find it!! Thanks so much!