When dinosaur bones from a recent dig mysteriously go missing, and an unidentifiable beast starts attacking animals and people, leaving their mangled bodies behind, Abigail and her eccentric employer R. F. Jackaby, investigators of the supernatural in 1892 New England, find themselves hunting for a thief, a monster, and a murderer.

"Queen Bitterblue of Monsea must head to the nation of Winterkeep after her envoys drown in suspicious circumstances, and somewhere there, Lovisa Cavenda waits and watches while tragedy with devastating political and personal ramification strikes"--

On his deathbed King Tyran divides his land between his twin children, first-born Ursula, a werebear, and Albrecht; but Albrecht wants it all and makes war on his sister, killing her people and the werebeasts, becoming a tyrant to his own kingdom--but their family history is far more complicated and mysterious than he knows, and Ursula has powerful allies in the living forest that surrounds their lands, including her aunt Esme who has been in hiding...

Edward is the King of England. He's also dying, which is inconvenient, as he's only sixteen and he'd rather be planning his first kiss than who will inherit his crown. Jane, Edward's cousin, is far more interested in books than romance. Unfortunately, Edward has arranged to marry her off to Gifford secure the line of succession. And Gifford is, well, a horse. That is, he is an Eðian (eth-y-un, for the uninitiated) who becomes a chestnut steed every...

Newly arrived in New Fiddleham, New England, 1892, and in need of a job, Abigail Rook meets R. F. Jackaby, an investigator of the unexplained with a keen eye for the extraordinary -- including the ability to see supernatural beings. Abigail has a gift for noticing ordinary but important details, which makes her perfect for the position of Jackaby's assistant. On her first day, Abigail finds herself in the midst of a thrilling case: A serial killer...