Guide to Pronunciation: A miscellaney of pronounciation for the world of the Obsidian Mountain trilogy.

Arthurian Bibliography: A good starting point for those wishing to learn more about the Arthurian mythos.

A Timeline of Arthurian History: A timeline covering the period of British history in which the Arthurian legend developed, with key points and dates for the shaping of the legend.

The Camelot Comet: Appendix A of Merlin: The Old Magic, discussing historical support for the theory that the Arthurian mythology was influenced by the appearance of a comet at the time of Arthur's death.

The unicorn picnic: A cut scene from To Light A Candle, book two of the Obsidian Mountain trilogy.