Night owls who find the creative muse during the dark hours should learn the verb “lucubrate,” which means “to write or study, especially by night.” It comes from the Latin verb “lucubrare,” which specifies working by lamplight. Horror fiction author H.P. Lovecraft insisted lucubration was most suited to his craft: “At night, when the objective world has slunk back into its cavern and left dreamers to their own, there come inspirations and capabilities impossible at any less magical and quiet hour. No one knows whether or not he is a writer unless he has tried writing at night.”