What is "blackbriar"

Blackbriar may refer to:

• Blackbriar (novel), a young adult novel by William Sleator
• Blackbriar Thorn, a DC Comics character
• Project Blackbriar, a spy program in the Bourne film series
• Blackbriar (the band), an alternative metal band from The Netherlands

Blackbriar is a 1972 supernatural young adult coming-of-age novel by William Sleator and was Sleator's first young adult novel. The book has been translated into German as Das Geisterhaus and into Danish as Det forheksede hus.