Lefay

 Mrs. Lefay was the fairy godmother of Andrew Ketterley. Though deceased before travel began between our world and Narnia, she played a vital role in starting it off.

Biography
Little is known of Mrs. Lefay's early life. She was of fairy descent. In her life she was known to have done some 'unwise things' (probably related to magic) which led to her being sent to prison. She was eventually made the godmother of young Andrew Ketterley, a member of a family she was apparently associated with. This privelege did not apparently stem from any fondness between her and the Ketterleys, as she was not talked about in their family, and she and her young godson were kept separated as much as possible. Nonetheless, Andrew's 'fairy godmother' appeared to make a strong impact on him.

Soon before she died, Mrs. Lefay was released from prison to die in her own home. In her last days, she allowed few people to see her aside from young Andrew Ketterley. Just before dying, she told him of a small box she had hidden, of magical origin, and gave him specific instructions on how to destroy it. Her death occurred soon after, around 1850.

Unbeknownst to her, Andrew had chosen to follow in her footsteps. In direct disobedience, he kept the box and it's contents and used them to embark on a long magical career. That very box would later lead to his greatest accomplishment; the rediscovery of travel between worlds.

Character
"I bet she was a bad fairy."

- Digory Kirke Mrs. Lefay was regarded as a disgrace by much of her family. She was open about her magic, and considered herself, as a fairy, to be above normal, common humans. She was probably not opposed to using her magic to hurt people as long as it advanced her own position, a view her godson Andrew grew to embrace. In all ways, it appears that young Andrew ( who grew to be an unsavory character himself) was a reflection of the godmother he so admired.

Etymology
Mrs. Lefay is believed to be an allusion to King Arthur's half sister Morgan Le Fay (lit. 'the fairy'), who was an enchantress of Arthurian legend.

A character with the same name appears in C.S. Lewis unfinished first attempt to a prequel of The Lion, the Witch and the Wardrobe, The Lefay Fragment. This Mrs. Lefay, in contrast, appears to be a kindly fairy godmother.

Speculation
There is much unknown about Mrs. Lefay. Some things can only be speculated upon.
 * It is unknown for certain whether she was actually related to the Ketterleys, or an honorary friend. Andrew referred to her later in life as his godmother, but it is strongly suggested that the two were also distant relatives.
 * It is also speculated that toward the end of her life, Mrs. Lefay bore a change in heart, leading to her instructions to Andrew to burn the magic box. It may be that she did not want him to live the life she had lived. If this was her intent, it was not carried out as she had hoped.