The Lunatic at Large is an 1899 comedy novel by the British writer J. Storer Clouston.

[1] Francis Beveridge escapes from a lunatic asylum and heads for London.

There, at a luxury hotel he meets up with a travelling German baron and becomes his guide to the sights of England and its capital city.

It has been made into films on two occasions, a 1921 British silent film directed by and starring Henry Edwards and a 1927 American silent film directed by Fred C. Newmeyer and starring Leon Errol, Dorothy Mackaill and Warren Cook.

You can help Wikipedia by expanding it.See guidelines for writing about novels.