I Know Someone 7K- A serial killer sends notes to Scully, describing his latest victim.

I Know Someone II: Where Are You? 11K- Captivity from someone’s point of view.

I'll Be Seeing You 283K- Scully's viewpoint as she recieves letters from Mulder's captor. Story is written by Fox's Gal, an authorized sequel to 'I Know Someone' - Has different ending

Not Without Permission 126K- Held captive by a madman, Mulder must stay alive long enough for Scully to find him. He may not have a choice. Story was written with Fox's Gal, a sequel to 'I'll Be Seeing You'.