"Twelve-year-old William uses the magic token to return, through the toy castle in his attic, to the medieval land of Sir Simon, which is now menaced by a skeleton ship bearing a plague of ravenous rats." -- from publisher.

Life is returning to normal for Denizen Hardwick. Well, the new normal, where he has to battle monsters in quiet Dublin bookshops and constantly struggle to contain the new powers he has been given by Mercy, the daughter of the Endless King. But Denizen may need those powers sooner than he thinks - not only are the Tenebrous stirring again but the Order of the Borrowed Dark face a new threat from much closer to home...

"In a reverse twist on the Robin Hood story, a young medieval maiden stands up for the rights of the mistreated, stealing from the rich to give to the poor, but she never anticipates falling in love with the wealthy knight who represents all she's come to despise"--

Denizen Hardwick has travelled to Daybreak, the ancestral home of the Order of the Borrowed Dark, to continue his training as a knight. But lessons have barely begun before an unexpected arrival appears with news that throws the fortress into uproar. The Endless King has fallen, his dark realm rising in a brutal civil war. When the conflict strikes closer to home, Denizen and his friends face their greatest challenge yet. For if Daybreak falls, so...

Much to their initial dismay, a twelve-year-old boy and girl discover they are destined to become knights of King Arthur's legendary Round Table, but first they must find and reforge Excalibur and break a curse that has weakened the magic of the Twenty-Five and a Half Realms.

"Tim and his friends travel by land and sea, collecting treasure and defeating monsters as they go"--

Prince Lucas, his friend Clara, and Ruskin the dragon travel with a team of knights to the forest of Trellis, where they discover that an evil sorcerer's shadow has cursed the land and only someone pure of heart and full of hope can save them.

After becoming a squire to Lord Raoul, commander of the King's Own, Kel of Mindelan, must face a terrifying test in the Chamber of the Ordeal before she can be a knight.

Keladry of Mindelan continues her training to become a squire with the aid of a new maid, the support of her friends, interference from some other pages, and some serious, even dangerous opposition.

Wiglaf and his classmates learn to appreciate their elders when a group of retired knights can help them save their school from the world's oldest living dragon, Grizzlegore.