Heh! The two dorty ones are 'Image of the Beast' and 'Blown' (I think). His other novels and series are better, though, I think. The
'Riverworld' series posits a place where persons who have died are resurrected along the banks of a gigantic, snaking, river and follows the travails and adventures of various personages from Samuel Clemens (ie Mark Twain), Sir Richard Francis Burton (no, not the welsh actor bloke, the other one - the Victorian explorer of Africa, polyglot, and translator of
The Perfumed Garden), Ghengis Khan amongst others. )
The
World of Tiers is a superior version of (and pre-dates) the 'Stargate' universe of movie/TV fame...
PJF wrote some great stuff in the 'heroic fantasy' and rip-roaring adventure mold...adding to the Tarzan canon, (and to 'Conan', too, though I'm not sure I'm recalling that correctly, I'll look it up in a minute!)
Brockett - hope your hand heals well...keep taking the tablets