Uncle Silas is a Victorian Gothic mystery novel first published in 1864 (an 1899 edition is presented here). It features the earliest examples of a locked room mystery subgenre. The novel is based on "A Passage in the Secret History of an Irish Countess" (1839) which itself was later published as The Murdered Cousin in 1851
UNCLE SILAS
A Tale of Bartram-Haugh
By J. S. LeFanu
1899
TO
THE RIGHT HON.
THE COUNTESS OF GIFFORD,
AS A TOKEN OF
RESPECT, SYMPATHY, AND ADMIRATION This Tale
IS INSCRIBED BY
THE AUTHOR