How the West Was Lost, by H.W. Williams

Hunting the Alphabet Killer, by Will11 (2020)
(5 ratings)

The Hypatia - A Puzzling Space Mystery by Jake Olefsky 2018 (2 ratings)

I am sorry for destroying the world, by Kronosaurus (2016)
(1 rating)

I Think The Waves Are Watching Me, by Bob McCabe (2015)
(8 ratings)

In Good Company by A.M. 2016 (17 ratings)

In the Fields of Sorrow, by H.W. Williams

in the living room by Nick Petrou 2019 (2 ratings)

Incident at Karrousel Park by David Curran

The Insect Massacre by Tom Delanoy 2015 (10 ratings)

Insight by Jon Ingold 2003 (23 ratings)

Instincts by Madison Vassari 2020 (2 ratings)

The Institute by Jyym Pearson and Robyn Pearson and Norman Sailer 1981

Internal Documents by Tom Lechner 2003 (3 ratings)

Internal Vigilance by Simon Christiansen 2005 (12 ratings)

The Internet Detective Game: Missoula Kidnapping by D F Curran 2013

Intra-System: Trust Issues by Smoke Some Frogs 2017 (1 rating)

Island in the Storm by JSMaika 2019 (5 ratings)

Island of Mystery Adventure, by Steven Neighorn (1987)

It's Killing Time by Eric Bonholtzer 2015 (3 ratings)