The Farthest Shore is the conclusion to Ursula K Le Guin’s Earthsea trilogy (which was added to later). Sparrowhawk/Ged is now the archmage and he’s approached by a young prince who says magic is weakening. The two of them go on a quest to discover the truth of what is happening and set it right.
I love these beautiful little books. I think there’s something magnificent about these worlds that are conjured through these character studies hanging on bits of plot. I mean, the Kingkiller chronicle is great, but this series scratches a similar itch for the epic grand coming-of-age story without the length. Like the epic nature of these tiny paperbacks is folded in on itself, they feel so much bigger because they’re the length of a Robert Jordan prologue. It’s just great, and if you have any interest in fantasy literature there is no reason to not read it.