Publication date (inferred) and price from The Athenaeum 3178 (1888-09-22) p376, "Ward & Downey's New Books"
The full text and images of this edition are available at The HathiTrust Digital Library.
-- Contents, p[vii]-viii
-- novel spans p[1]-340
-- back pages [341-44], publisher advertisements including Adventure Books as "each handsomely bound in cloth gilt"; this title listed as 5s.
(The other lists (4) are New Novels in the Town and Country series, Six Shilling Novels, Three-and-Sixpenny Novels, and Two Shilling Novels.)