Here are the Catechism references to the post I made last night.
Death: http://www.vatican.va/archive/catechism/p123a11.htm#II “Dying in Christ Jesus” “Death” “The Meaning of Christian Death”
Particular Judgement, Heaven, Hell : http://www.vatican.va/archive/catechism/p123a12.htm
I also suggest reading the preceeding sections since they deal with the Creed.
Have a Blessed Lent.