Nancy Springer

"When Enola Holmes, sister to the detective Sherlock Holmes, discovers her mother has disappeared, she quickly embarks on a journey to London in search of her. But nothing can prepare her for what awaits. Because when she arrives, she finds herself involved in the kidnapping of a young marquess, fleeing murderous villains, and trying to elude her shrewd older brothers - all while attempting to piece together clues to her mother's strange disappearance....

When professional typist Letitia Glover is desperate to learn more about the fate of her twin sister Flossie, Enola enlists the help of her brother Sherlock and her friend Tewky to investigate Flossie's husband, the sudden death of his first wife, and the mysterious appearance of a black barouche.

"In the ancient moors of Scotland, the king of Calidon lies on his deathbed, cursed by a ring that cannot be removed from his finger. When a mysterious fey stranger appears to save the king, he also carries a secret that could tear the royal family apart. The kingdom's only hope will lie with two young men raised worlds apart. Aric is the beloved heir to the throne of Calidon; Albaric is clearly of noble origin yet strangely out of place. The Oddling...

In a war-torn England where her half-brother Arthur will eventually become king, the young Morgan le Fay comes to realize that she has magic powers and links to the faerie world.

What a 14th-birthday surprise for Enola Holmes! Her elderly mom is nowhere to be found. Not even her estranged brothers Mycroft and Sherlock can find any useful clues. But the precocious teen can. Using the birthday gifts Lady Holmes left behind, Enola uncovers cleverly stashed money and cryptic clues that send her racing across the wild heaths toward 1888 London. As she searches for her mother, Enola becomes distracted by the strange disappearance...