"The Nutcracker and the Mouse King" (German: Nussknacker und Mausekönig) is a story written in 1816 by German author E. T. A. Hoffmann, in which young Marie Stahlbaum's favorite Christmas toy, the Nutcracker, comes alive and, after defeating the evil Mouse King in battle, whisks her away to a magical kingdom populated by dolls. In 1892, the Russian composer Pyotr Ilyich Tchaikovsky and choreographers Marius Petipa and Lev Ivanov turned Alexandre Dumas père's adaptation of the story into the ballet The Nutcracker, which became one of Tchaikovsky's most famous compositions, and perhaps the most popular ballet in the world.
The story begins on Christmas Eve at the Stahlbaum house. Marie, seven, and her brother, Fritz, eight, sit outside the parlor speculating about what kind of present their godfather, Drosselmeyer, who is a clockmaker and inventor, has made for them. They are at last allowed in, where they receive many splendid gifts, including Drosselmeyer's, which turns out to be a clockwork castle with mechanical people moving about inside it. However, as they can only do the same thing over and over without variation, the children quickly tire of it. At this point, Marie notices a nutcracker, and asks whom he belongs to. Her father tells her that he belongs to all of them, but that since she is so fond of him she will be his special caretaker. She, Fritz, and their sister, Louise, pass him among them, cracking nuts, until Fritz tries to crack one that is too big and hard, and the nutcracker's jaw breaks. Marie, upset, takes him away and bandages him with a ribbon from her dress.