The Dark has stolen an object of great power--a golden grail that holds a vital secret. Will embarks on a new quest to reclaim the grail, and to drive back the Dark once again. But first he will need the help of three former grail seekers: Jane, Simon, and Barney Drew.

Charlie and his friends unite to rescue Ollie, a boy who was turned invisible and made to live in the attics at Bloor's Academy more than a year ago, but they are hindered by a mysterious new student who lives with Charlie's aunts. In the ruins of the castle of the Red King, Charlie and tancred discover a tree-girl that whispers secrets to them and asks for their help in restoring her to a real girl. When Charlie returns to help her, he finds that...

When Ted and Kat's cousin Salim disappears from the London Eye ferris wheel, the two siblings must work together--Ted with his brain that is "wired differently" and impatient Kat--to try to solve the mystery of what happened to Salim.

In World War II England, orphaned siblings William, Edmund, and Anna are evacuated from London to live in the countryside, where they bounce from home to home in search of someone willing to adopt them permanently.--