Ah, Christmas! Gemma Doyle is looking forward to a holiday from Spence Academy, spending time with her friends in the city, attending ritzy balls, and on a somber note, tending to her ailing father. As she prepares to ring in the New Year, 1896, a handsome young man, Lord Denby, has set his sights on Gemma, or so it seems. Yet amidst the distractions of London, Gemma's visions intensify, visions of three girls dressed in white, to whom something horrific has happened, something only the realms can explain.

It has been a year of change since Gemma Doyle arrived at the foreboding Spence Academy. Her mother murdered, her father a laudanum addict, Gemma has relied on an unsuspected strength to turn catty schoolgirls into loyal friends, and has discovered an ability to travel to an enchanted world called the realms, where dark magic runs wild.

Audie Award, Young Adult, 2016. After a supernatural showdown with a serial killer, Evie O'Neill has outed herself as a Diviner. Now that the world knows of her ability to "read" objects and therefore read the past, she has become a media darling, earning the title, "America's Sweetheart Seer". But not everyone is so accepting of the Diviners' abilities.... Meanwhile, mysterious deaths have been turning up in the city, victims of an unknown sleeping sickness. Can the Diviners descend into the dreamworld and catch a killer?

After the horrifying explosion that claimed one of their own, the Diviners find themselves wanted by the US government, and on the brink of war with the King of Crows. While Memphis and Isaiah run for their lives from the mysterious Shadow Men, Isaiah receives a startling vision of a girl, Sarah Beth Olson, who could shift the balance in their struggle for peace. Sarah Beth says she knows how to stop the King of Crows - but, she will need the Diviners' help to do it.

After battling a sleeping sickness, The Diviners are up against a group of new and malevolent foes - ghosts! Out in Ward's Island sits a mental hospital full of lost souls from people long forgotten. Ghosts who have unusual and dangerous ties to the Man in the Stovepipe Hat also known as the King of Crows. With terrible accounts of murder and possession flooding in from all over New York City, the Diviners must band together and brave the ghosts haunting the asylum to bring down the King of Crows.