Mayo, did you mean Multitudes of Mercies? I looked in the databases, both NGA and AHS and could not find a Multitudes of Darkness. The registration image, along with the one on her website, showing the brown base color with the watermark is really interesting.
AHS database....
http://www.daylilies.org/Dayli...
Her website....
https://picasaweb.google.com/1...
(A side note - If Multitudes of Mercies is right would you like me to correct your thread title?)