Book Three in the Ahriman Series.

After many years and untold sacrifices, Ahriman is ready to attempt the unthinkable. Join him in this quest through time and space.

Read it because....

It's the third book of the quadrilogy, but because it’s Ahriman, anything goes. When his grand plan is revealed, the scale of it will blow you away—and that's before the return to not one but both of the Thousand Sons' home worlds, and huge battles as the Legion turns on itself and a certain prominent figure comes home....

The story:

It has taken many long years and countless sacrifices, but finally Ahriman, former Chief Librarian of the Thousand Sons, now exile and sorcerer, is ready to attempt the most audacious and daring feat of his long life. His quest for knowledge and power has all been for one purpose, and he would now see that purpose fulfilled. His goal? Nothing less than undoing his greatest failure and reversing the Rubric that damned his Legion....

Written by John French. Narrated by Mark Elstob. Running time (approx.) 10 hours 35 minutes.