Here's the order in which they were written, however:
Looking For Ianto In All The Wrong Places
Prologue - nos_tylluan
Summary: It's after the events of Children of Earth and Jack is on the run. Just how far and for how long can he go, and what is it that makes him finally turn around and face what he's running from? In this story broken by grief, Jack wanders the Earth aimlessly until someone finds him. Someone who gives him the means to go searching through the parallel worlds for his lost love.
Barging In - Rootesie
Summary: Jack finds a rather appealing version of Ianto in an alternate universe, but what kind of man is he? And will he be interested in Jack?
Monuments and Moments - Anduria Trianys
Summary: Tyrennis was always thought to be an uninhabited land. But what happens when Jack arrives there?
Soul Reflections - nos_tylluan
Summary: Using the artifact that Tarot Girl led Jack to find, he jumps to another alternate reality in his search to find Ianto. As he proceeds onwards, will he find the man that he loves, or just a carbon copy of Ianto who is too radically different from his own Ianto so as not to be compatible? In Soul Reflections, Jack searches with hope in his heart that finally this time he has found a replacement for his soul mate...
Is This You I've Found? - Sunwee
Summary: In the continuing story of Jack searching for an alternate universe Ianto to replace his own lost love, Jack finds himself on a world that may make it impossible to find what he seeks....
On The Wrong Side Of the Looking Glass - nos_tylluan
Summary: In this story, Jack once again jumps dimensions in his search to find Ianto but finds himself in an unexpected place that turns his whole life upside down in the process of his search to find Ianto. Can he thread the minefield of this reality without causing too much damage, both to others and himself? Read on to find out!