The ending to Narnia

Alright so for those of you who realized "Hey, I never read the Narnia series, I now must correct my mistake."
I'll save you the trouble, there is a whole series of books and I highly recommend the first two. But for your own sake end it right there, at The Lion, the Witch, and the Wardrobe. Because boy, oh boy it is a long read, and not worth it.
I finished the series to...
SPOILER ALERT
only find out they are all dead. They thought they were in a train crash, but then they came to Narnia.
At the very end Aslan basically says "Hey it WAS a train crash, you and all your family is dead, so now you can stay in Narnia and party forever!"
WHAT? WHAT?
This happened in about two lines. Total plot twist in the last two lines of".he book. No, no nonono. That is not how you a series, you are supposed to tie it all up with a bow. Not "Congrats, your'e dead."
No. I will not accept that.
Sorry.
Try again, C.S. Lewis.