my favorite novel of all time is also one of the longest I’ve read. The Stone and The Flute by Hans Bemmann translated from German by Anthea Bell - telling a story of one man from birth to death (by old age). It’s a fantasy novel but is much much more - it uses stories within stories and takes some unexpected turns. Parts are rough reading because the main character makes real mistakes - and pays for them.
Nearly 40 years after reading it I still think of it often