what exactly happens, after death?

Last evening, as we sat by our roaring driftwood fire, and chatted aimlessly over a glass of madeira and a pipe or two, Geoffrey and I realised that we had tired of our fave topic, "Is Death Avoidable?", and have taken the logical step of turning to the next rung up so to speak, viz., "Is There Life After Death?", or, "What Exactly Happens, After Death?".
"Does this mean that we've accepted Death as inevitable?" I mused.
"No Tuppy, of course we haven't," replied Geoffrey, refilling his pipe.
"All the same that doesn't mean that we're going to stop eating pies, surely?" I asked, worriedly.
"No. Pies, salty/fatty snax and processed meats will remain a major part of our diets. Have no fear on that front, Tuppy."
"What on earth do you mean then? According to the ghastly Wilson, our diet is killing us. Salt, the silent killer. Kidneys like conkers. Fatty atheromas. Plaques. You name it, we've got it."
"Yes, but who is Wilson, really? what does he really know? all this so-called research that he bangs on about viz a viz our diets could be just a load of old pants, quite frankly. And look at the state of him! So pale and scrawny. And that's him living on seaweed."
"Or so he says, Geoffrey. I've often suspected he might supplement his so-called diet with something else...but more of that later. I agree he does look as if he could do with a good feed."
"Yes and he's SO tense all the time! ranting on about people's mortality and getting worked up."
"Yes. I'm surprised that HE doesn't have a heart attack. He wants to chill out a bit. Anyway enough about Wilson. Get back to the point, please, Geoffrey. You were saying that we haven't given up on the idea that death could be avoidable?"
"Of course we haven't. But we might as well digress for a bit to consider what might happen should death occur - afterwards."
"Oh." I must say my heart sank as I contemplated this ghastliness. All sorts of depressing scenarios flooded my brain. Life without Geoffrey! And never mind that - would there be madeira, and crisps?
"No, Geoffrey, this won't do at all. This is depressing the hell out of me. We'll have to return to sunnier climes, viz., is Death Avoidable. And pass me that plateful of korn bif and salad cream sandwiches while you're at it."