Allen Stairs offers a spirited reply, and an amusing last line, but I am a bit more sympathetic with your worry. You might check out the Stanford Encyclopedia of Philosophy entry on beliefs about the afterlife which I co-authored with William Hasker. There is a terrific book on hell by Jerry Walls called Hell: The Logic of Damnation and a good reference work published by Oxford University Press, A Handbook on Eschatology. Jonathan Kvanvig also has a good book on hell that carefully runs through the possible justifications for belief in hell. Minor point: for many religious traditions in which there is a hell, hell is understood to be self-created rather than created by God. This is colorfully and vividly represented in Milton's Paradise Lost. Philosophical arguments for belief in an afterlife (or life beyond life) are often developed in the context of the case for and against theism, though philosophers who are atheists have believed in an afterlife (e.g. Buddhist philosophers). The British idealist McTaggert made an interesting case for an afterlife without theism --his viewpoint has been described as Heaven without God. Ronald Dworkin in his book Religion without God also has some interesting speculation about how secular humanism can (in principle) accommodate an afterlife.