Terry Goodkind - Temple of the Winds (Book 4) (Sword of Truth)

Jagang, Emperor of the Imperial Order, has invoked a bound fork prophecy binding Richard and Kahlan to a fate of pain, betrayal, and a path to the Underworld. At Jagang's behest a Sister of the Dark gains access into the fabled Temple of the Winds and has unleashed a plague that sweeps across the lands like a firestorm consuming lives at an alarming rate. To stop the plague Richard and Kahlan are forced to sacrifice everything they have between them.

Reuploaded Thanks to floarea

Terry Goodkind - Soul of the Fire (Book 5) (Sword of Truth)

Here is the fifth book of the series:

An act of desperation sets loose the three Chimes, otherworldly creatures with the power to destroy magic. While Richard Rahl, the Seeker of Truth, and his wife, Kahlan, the Mother Confessor, search for a way to recall the Chimes, the emperor Jagang continues his savage war against the lands of D'Hara.