I Know You Know
Gilly Macmillan
I'll Never Tell
Catherine McKenzie
If You Really Loved Me
Ann Rule
Imaginary Friend
Stephen Chbosky
In a Dark, Dark Wood
Ruth Ware
In the Blood
Lisa Unger
The Hollows (3)
Inferno
Dan Brown
Robert Langdon (4)
The Ingenue
Rachel Kapelke-Dale
Ink and Bone
The Hollows (5)
Inspection
Josh Malerman
Into the Darkest Corner
Elizabeth Haynes
The It Girl
The Job
Janet Evanovich
Fox and O'Hare (3)
Just Another Missing Person
Gillian McAllister
Just Like Home
Sarah Gailey
Just One Look
Lindsay Cameron
Just the Nicest Couple
Mary Kubica
Kill Joy
Holly Jackson
A Good Girl's Guide to Murder (0.5)
Lady in the Lake
Laura Lippman
The Lake House
Kate Morton
The Language of Secrets
Ausma Zehanat Khan
Rachel Getty & Esa Khattak (2)
The Last Breath
Kimberly Belle
Last Girl Ghosted
The Last High
Daniel Kalla
The Last House Guest
Megan Miranda
The Last Housewife
Ashley Winstead
Last Night in Montreal
Emily St. John Mandel
The Last Ranger
Peter Heller
The Last Resort
Marissa Stapley
The Last Town
Blake Crouch
Wayward Pines (3)
The Last
Hanna Jameson
Layla
Colleen Hoover
The Listeners
Jordan Tannahill
Little Secrets
Jennifer Hillier
The Lola Quartet
The Lost Girls of Willowbrook
Ellen Marie Wiseman
The Lost Man
Jane Harper
The Lost Symbol
Robert Langdon (3)
The Lost Village
Camilla Sten
The Lovely Bones
Alice Sebold
Lucky
The Lying Woods
Ashley Elston
Magic for Liars
The Maidens
Alex Michaelides
The Marriage Lie
Mary: An Awakening of Terror
Nat Cassidy
Midnight
Amy McCulloch
Midnight Is the Darkest Hour
The Mostly True Story of Tanner & Louise
Colleen Oakley
Mothered
Zoje Stage