•Why it earns a slot
Published in 1908, the novel gave English literature its most enduring portrait of the tension between the pull of home and the lure of the open road, embodied in characters -- Rat, Mole, Badger, and Toad -- whose distinct temperaments and loyalties have defined the pastoral-comic animal story ever since.
Four animal friends -- the home-loving Mole, the river-devoted Rat, the reclusive Badger, and the reckless, motor-car-obsessed Toad -- live along an English riverbank and in the surrounding Wild Wood. The book follows their seasons of friendship, adventure, and misadventure, culminating in Toad's imprisonment for stealing a motor-car, his escape in disguise, and the four friends banding together to retake Toad Hall from the weasels and stoats who have seized it. Order is restored, Toad is humbled (at least briefly), and the companions return to their contented riverside lives.
This distillation is written from the freely available original, which is always the better read when you have the time: gutenberg.org.