Centaur Aisle

"Centaur Aisle" by Piers Anthony is the fourth entry in the Xanth series and continues the tale of Dor, the young heir to the throne of Xanth, as he is thrust into the difficult role of acting king. When King Trent and Queen Iris journey to Mundania and fail to return, Dor must set aside his self-doubt and lead a daring rescue mission across the boundaries of magic and reality. Along with a small band of allies—including the formidable centaur Xanth, a shape-shifting princess, and a clever golem—Dor ventures into the non-magical realm of Mundania, where the laws of Xanth no longer apply and logic reigns supreme.
What sets "Centaur Aisle" apart from its predecessors is its unique foray into a more structured, mundane world, offering a fresh contrast to Xanth’s usual whimsy. Piers Anthony balances the high-stakes quest with his trademark humor and inventive wordplay, but he also deepens his characters, particularly Dor, who must grapple with the burden of leadership and the complexities of diplomacy. The plot unfolds with a mix of magical puzzles, clever reversals, and the familiar pun-laced charm that fans of the series have come to expect.
I recommend "Centaur Aisle" to readers who enjoy fantasy that doesn't take itself too seriously but still delivers meaningful character growth and an engaging adventure. It’s a satisfying continuation of the Xanth saga, offering a bit more maturity in its protagonist while still embracing the lighthearted, imaginative spirit that defines the series.