The Monstrumologist (The Monstrumologist #1)

These are the secrets I have kept. This is the trust I never betrayed. But he is dead now and has been for more than forty years, the one who gave me his trust, the one for whom I kept these secrets. The one who saved me . . . and the one who cursed me.

So starts the diary of Will Henry, orphaned assistant to Dr. Pellinore Warthorpe, a man with a most unusual specialty: monstrumology, the study of monsters. In his time with the doctor, Will has met many a mysterious late-night visitor, and seen things he never imagined were real. But when a grave robber comes calling in the middle of the night with a gruesome find, he brings with him their most deadly case yet.

A gothic tour de force that explores the darkest heart of man and monster and asks the question: When does man become the very thing he hunts?

The Curse of the Wendigo (The Monstrumologist #2)

While attempting to disprove that Homo vampiris, the vampire, could exist, Dr. Warthrop is asked by his former fiancé to rescue her husband from the Wendigo, a creature that starves even as it gorges itself on human flesh, and which has snatched him in the Canadian wilderness. Although Warthrop also considers the Wendigo to be fictitious, he relents and rescues her husband from death and starvation, and then sees the man transform into a Wendigo.

Can the doctor and Will Henry hunt down the ultimate predator, who, like the legendary vampire, is neither living nor dead, whose hunger for human flesh is never satisfied?

This second book in The Monstrumologist series explores the line between myth and reality, love and hate, genius and madness.

The Isle of Blood (The Monstrumologist #3)

When Dr. Warthrop goes hunting the "Holy Grail of Monstrumology" with his eager new assistant, Arkwright, he leaves Will Henry in New York. Finally, Will can enjoy something that always seemed out of reach: a normal life with a real family. But part of Will can't let go of Dr. Warthrop, and when Arkwright returns claiming that the doctor is dead, Will is devastated--and not convinced.

Determined to discover the truth, Will travels to London, knowing that if he succeeds, he will be plunging into depths of horror worse than anything he has experienced so far. His journey will take him to Socotra, the Isle of Blood, where human beings are used to make nests and blood rains from the sky--and will put Will Henry's loyalty to the ultimate test.

The Final Descent (The Monstrumologist #4)

Will Henry and Dr. Warthrop have encountered many horrors together—but can Will endure a monstrumological terror without his mentor?

Will Henry has been through more that seems possible for a boy of fourteen. He’s been on the brink of death on more than one occasion, he has gazed into hell—and hell has stared back at him, and known his face. But through it all, Dr. Warthrop has been at his side.

When Dr. Warthrop fears that Will’s loyalties may be shifting, he turns on Will with a fury, determined to reclaim his young apprentice’s devotion. And so Will must face one of the most horrific creatures of his monstrumology career—and he must face it alone.

Over the course of one day, Will’s life—and Pellinor Warthrop’s destiny—will lie in balance. In the terrifying depths of the Monstrumarium, they will face a monster more terrible than any they could have imagined—and their fates will be decided.

The 5th Wave (The 5th Wave #1)

After the 1st wave, only darkness remains. After the 2nd, only the lucky escape. And after the 3rd, only the unlucky survive. After the 4th wave, only one rule applies: trust no one.

Now, it’s the dawn of the 5th wave, and on a lonely stretch of highway, Cassie runs from Them. The beings who only look human, who roam the countryside killing anyone they see. Who have scattered Earth’s last survivors. To stay alone is to stay alive, Cassie believes, until she meets Evan Walker.

Beguiling and mysterious, Evan Walker may be Cassie’s only hope for rescuing her brother—or even saving herself. But Cassie must choose: between trust and despair, between defiance and surrender, between life and death. To give up or to get up.