Jabberwocky is a poem taken from the book 'Through the Looking Glass'. In the novel, a little girl named Alice passes through a mirror in her play room and reaches a strange world in which extraordinary things can and do happen. Alice finds a book in the looking-glass (mirror) world which at first she cannot read.
She realises the book has been written backwards, and when she holds it up to a mirror she is able to read it. Written in the book is a nonsense poem, called Jabberwocky.
In the poem a young hero goes to kill a fearsome beast and returns to his father having fearlessly completed his task.
Alice reads the poem and is very confused by its strange language. She carries on through the looking glass world, and when she returns to her playroom we are not sure whether we have been on a journey to another world or through the strange imagination of Alice.