The first play in which Day appears as part-author is "The Conquest of Brute, with the finding of the Bath" (1598), which, with most of his early work, is lost. Day's earliest extant work, written in collaboration with Chettle, is "The Blind Beggar of Bethnal Green" (acted 1600, printed 1659), a drama dealing with the early years of the reign of Henry VI. It bore the sub-title of "The Merry Humor of Tom Strowd, the Norfolk Yeoman", and was so popular that second and third parts, by Day and Haughton, were produced in the next year. "The Isle of Gulls" (printed 1606), a prose comedy founded upon Sir Philip Sidney's "Arcadia", contains in its light dialogue much satire to which the key is now lost, but Algernon Charles Swinburne notes in Manasses's burlesque of a Puritan sermon is a curious anticipation of the eloquence of Mr. Chadband in "Bleak House". In 1607 Day produced, in conjunction with William Rowley and George Wilkins, "The Travels of the Three English Brothers", which detailed the adventures of Sir Thomas, Sir Anthony and Robert Shirley. This play is a dramatic romance of a type that hearkened back to the early decades of the public stage in London. In 1608 Day published two comedies, "Law Tricks, or Who Would have Thought it?" and "Humour out of Breath".