This book tells the story of Sister Faustina, a nun to whom God entrusted the message of Mercy. It is also about the presence of Satan in the life of this Saint; Satan the tempter, Satan who is full of hatred, "the enemy of Mercy".

The book tells the story about devotion to the Divine Mercy. Satan hates Divine Mercy because it takes away souls that were once in his hands. It not only informs us of the attacks of the enemy on our souls, but it also gives us the tools to oppose Satan, and it assures us of our victory.

Written by an exorcist priest of many long years who has a great understanding and has seen firsthand the tricks and snares of the enemy. Illustrations by world-famous Divine Mercy artist Tommy Canning. 40 pages.