With an intriguing cover like this...
...how could I resist running this rarely-seen tale by writer Joe Gill and artist Steve Ditko!
This story of artistic alien assassins and poisonous pigments appeared in Charlton's Unusual Tales #7 (1957) during one of Steve Ditko's most prolific periods as he freelanced for several companies including Atlas (later Marvel), Charlton, and St John doing a little in every genre...even romance!