Emily Wilde's Compendium of Lost Tales — Heather Fawcett

The third installment in the heartwarming and enchanting Emily Wilde series, about a curmudgeonly scholar of folklore and the fae prince she loves
 
Emily Wilde has spent her life studying faeries. A renowned dryadologist, she has documented hundreds of species of Folk in her Encyclopaedia of Faeries. Now she is about to embark on her most dangerous academic project yet: studying the inner workings of a faerie realm -- as its queen.
 
Along with her former academic rival -- now fiancé -- the dashing and mercurial Wendell Bambleby, Emily is immediately thrust into the deadly intrigues of Faerie as the two of them seize the throne of Wendell's long-lost kingdom, which Emily finds a beautiful nightmare filled with scholarly treasures.
 
Emily has been obsessed with faerie stories her entire life, but at first she feels as ill-suited to Faerie as she did to the mortal world: How can an unassuming scholar such as herself pass for a queen? Yet there is little time to settle in, for Wendell's murderous stepmother has placed a deadly curse upon the land before vanishing without a trace. It will take all of Wendell's magic -- and Emily's knowledge of stories -- to unravel the mystery before they lose everything they hold dear.