Midsummer at Eyre Hall (The Eyre Hall Trilogy #3)
Luccia Gray

Romance, mystery, and excitement will unfold, based on the lives of the original characters, while bringing to life new and intriguing ones, spinning a unique and absorbing narrative, which will move the action from the Yorkshire countryside, to Victorian London, and magical Cornwall.
Should be read after Book 1, All Hallows at Eyre Hall and Book 2, Twelfth Night at Eyre Hall.