Time in the real world doesn't move when you're in Narnia, or it does go really slow, It would take a million years in Narnia for people in the real world to get suspicious.
In "The Chronicles of Narnia" series by C.S. Lewis, none of the Pevensie siblings die during the events of the books. They all survive and play significant roles in the adventures and battles that take place in Narnia.
To answer what happens to people when they die.
Mr. Tumnus is not in the Second movie or book. The amount of time is such that there were no living creatures that personally knew the children from the first book. Time passes much faster in Narnia then in the real world.
People die worldwide every minute, from many causes. Unfortunately, it happens way too much in this world.
people die
Many things happen in the world in one minute. People meet, people die, babies are born, people go hungry, and so on.
Warning; this answer contains spoilers. Do not read any further if you don't want to know. Actually, all four pevensies and their parents die because of a train accident. When they die, the pevensies go to Narnia and the world of Narnia ends. When the Narnian world dies, Aslan sends them to Aslan's Country where Lucy is reunited with Mr Tumnus and the other animals she met when she first discovered Narnia. In the real world, yes, the pevensies are dead, but in Narnia the four glorious kings and queen live forever. Long live Aslan!!!
Jill and Eustace are flung into Narnia one second before (in our world) they end up in a trauin accident. Lucy, Digory, and Polly are with them. Edmund and Peter are waiting on the platform, and get hit bu the train, die, and go to Narnia.
We Die!
Die Chroniken von Narnia: Die Reise auf der Morgenröteis a German equivalent to the title of the movie 'Narnia 3: The Voyage of the Dawn Treader'.
in the last Narnia peter, Lucy ,Edmund all die and susan lives because she refuses to go back to Narnia and forget all about naria
After the events of the third film in the Chronicles of Narnia series, Peter, Edmund, Lucy, and Susan do not return to Narnia as they are considered too old. They continue growing up in England and lead their lives as young adults.