Flying World, based on Robert Paltock's 1751 novel. For this elaborate production, which featured two Clowns (Dubois and Grimaldi), Dibdin introduced new costume designs. Clown's costume was "garishly colourful ... patterned with large diamonds and circles, and fringed with tassels and ruffs," instead of the tatty servant's outfit that had been used for a century. The production was a hit, and the new costume design was copied by others in London. Despite Dubois' "endless bag of tricks [and] vast array of skills", his performance appeared artificial, in contrast to Grimaldi, who was better able to "draw the audience into believing the essential comedic qualities" of Clown. At Drury Lane later in 1800, he starred as an officer in The Wheel of Fortune by Richard Cumberland, a Jewish pedlar in The Indian, as Clown in Robinson Crusoe, and as the Second Gravedigger in Hamlet, alongside John Philip Kemble. Grimaldi's wife Maria and their unborn child died during childbirth on 18 October 1800. To cope with his grief, Grimaldi would often perform two shows a night; one at Sadler's Wells and the other at Drury Lane. One of Grimaldi's hobbies was butterfly collecting. He accumulated as many as 4000 specimens in cabinets. In 1800 thieves broke into his home while he was away rehearsing and destroyed most of his cabinets, leading him to give up butterfly collecting and shift to pigeon rearing. Dickens described the crime as "the most heartless cruelty, and ... absence of all taste for scientific pursuits." With the Christmas season approaching, and the success of Peter Wilkins still a topic of conversation within theatrical circles, Kemble decided to stage the first Drury Lane pantomime in three years, Harlequin Amulet; or, The Magick of Mona, with Grimaldi as Punch and then as Clown, instead of Dubois. In this production, Harlequin became "romantic and mercurial, instead of mischievous", leaving Grimaldi's Clown as the "undisputed agent" of chaos. The pantomime was a great success, running for thirty-three performances and having a second Drury Lane season at Easter 1801; as a result, Grimaldi became recognised as one of London's leading Clowns. Grimaldi originated the catchphrase "Here we are again!", which is still used in pantomime. He also was known for the mischievous catchphrase "Shall I?", which prompted audience members to respond "Yes!" Grimaldi and Dubois appeared together again later that spring at Sadler's Wells in Dibdin's Harlequin Alchemist, which set up a