The book was the basis of an opera by Ralph Vaughan Williams, premiered in 1951.
==Extract—Apollyon==
<ref>Offor G (1859), "The works of John Bunyan", Vol 3, Blackie & Son. For download from archive.org .
There is also a version with seventeenth century spelling, that is, Bunyan J (1847), "Pilgrim's Progress", Ed Offor G, Hanserd Knollys Society.</ref>
==Quotes==
==References==
{{reflist}}
==Links==
{{returnto}} [[Christianity]] -> [[Christian literature]]
[[Category:Christian literature]]