– Why do I think ‘Mysteries’ is suitable as an opera? Well, this distinct cast of carachters lends itself brilliantly to the stage! Johan Nilsen Nagen – ” in an eccentric yellow suit and with a wide velvet hat”, Dagny Kielland – “with a thick blonde braid down her back”, Martha Gude – “her hair is white; her eye hair is terribly black, and appear to make the eyes smolder”, and Minutten – “his walk was so troublesome it was conspicuous; and yet he moved so quickly around”.