The legend of the four soldiers

1. 

   Book 1

   To taste temptation

   Elizabeth Hoyt

2. 

   Book 2

   To seduce a sinner

   Elizabeth Hoyt

3. 

   Book 3

   To Beguile A Beast

   Elizabeth Hoyt

4. 

   Book 4

   To desire a devil

   Elizabeth Hoyt

5. 

   To Desire a Devil

   Elizabeth Hoyt

Book data and covers from Open Library (openlibrary.org).