A retelling of four Arthurian legends, "The Sword in the Stone," "Excalibur," "The Lady of the Lake," and "The Last Great Battle," which feature Merlin, King Arthur, and other familiar figures.

Young Arthur meets a dragon and comes to accept him as a friend and mentor.

"The day after he turns thirteen, orphan Jax Aubrey awakes to a world without people. His reaction? It must be the zombie apocalypse. When everything goes back to normal the next day, he's sure he's lost it. Then Riley Pendare, Jax's eighteen-year-old guardian, breaks the news: yesterday was the Eighth Day, an extra twenty-four hours between Wednesday and Thursday. "Transitioners," like Jax and Riley, live in all eight days. Others, like Evangeline,...

Eighteen-year-old Vivienne, lady-in-waiting to the future queen Guinevere, is secretly apprenticed to Merlin the magician and helps him try to create a steam-powered metal beast to defeat Morgan La Fey, King Arthur's sorceress sister, when she declares war on Camelot.

Merlin the magician will not eat or sleep or speak to anyone. The enchantress Morgan asks young Jack and Annie of Frog Creek, Pennsylvania for help. Jack and Annie know they have to search for one of the four secrets of happiness to help Merlin the magician find joy in his life again. And so they head off in the magic tree house for Florence, Italy, in the early 1500s, then to a misty island in the middle of nowhere, then to the continent of Antarctica....