Get your free copty of "Sacrementum Caritatis". Just download a copy in pdf format from "Thy Kingdom Come" website.
Oh, and by the way, according to our Holy Father, hell really does exist, and is eternal. Next time a hell-denier makes you angry, just imagine them walking on a tightrope over the pit of hell. That image works for me, and instead of righteous anger(they are, after all misleading people to downplay Christ's sacrificial death on the cross, if there's no hell, why did He need to die to save us?) I feel pity, and pray for their salvation. It's no joke.