Humor doesn’t automatically come to mind when thinking of the dark drama Penny Dreadful; however, it makes quite an unexpected appearance in “Verbis Diablo.” Our lovable British Museum curator, the delightful Ferdinand Lyle played brilliantly by Simon Russell Beale, brings his charisma and knowledge to Sir Malcolm Murray (Timothy Dalton) when he enlists his aide in figuring out the puzzle of the “verbis diablo” language. We also see a familiar face resurface in “Verbis Diablo” when the uniquely handsome Dorian Gray (Reeve Carney), abroad in another city, dazzles yet another woman with a secret of her own. Be warned; while “Verbis Diablo” provides a healthy dose of frivolity, sinister deeds take place among the witches—deeds that will have you cowering in a corner wishing for daylight.