after a long and eventful life allan karlsson ends up in a nursing home believing it to be his last stop the only problem is that hes still in good health a big celebration is in the works for his 100th birthday but allan really isnt interested and hed like a bit more control over his alcohol consumption so he decides to escape he climbs out the window in his slippers and embarks on a hilarious and entirely unexpected journey it would be the adventure of a lifetime for anyone else but allan has a largerthanlife backstory he has not only witnessed some of the most important events of the 20th century but actually played a key role in them quirky and utterly unique the 100yearold man who climbed out the window and disappeared has charmed readers across the world