Madame Tussauds took a series of short leases on the upper floor of "Baker Street Bazaar" (on the west side of Baker Street, Dorset Street, and King Street), which later featured in the Druce-Portland case sequence of trials of 1898–1907. This became Tussaud's first permanent home in 1836. By 1835, Marie had settled down in Baker Street, London and opened a museum. One of the main attractions of her museum was the Chamber of Horrors. The name is often credited to a contributor to "Punch" in 1845, but Marie appears to have originated it herself, using it in advertising as early as
221B Baker Street Street. "We met next day as he had arranged, and inspected the rooms at No. 221B, Baker Street, of which he had spoken at our meeting. They consisted of a couple of comfortable bed-rooms and a single large airy sitting-room, cheerfully furnished, and illuminated by two broad windows."<br>(Arthur Conan Doyle, "A Study in Scarlet", 1887) When the "Sherlock Holmes" stories were first published, street numbers in Baker Street did not go as high as 221. The section north of Marylebone Road near Regent's Park – now including 221 Baker Street – was known in Conan Doyle's lifetime as Upper Baker