The final installation of the Alex Rider series, Scorpia Rising, was released in North America on March 22 of this year. In a new move for the series, it was published in North America before the United Kingdom editions, released on March 31.
But fans, do not despair, Horowitz still plans to go through with his project, currently referred to as "Yassen." And the Alex Rider graphic novel series still has a few more editions to go, the next being Eagle Strike.
Scorpia Rising is available on-line and in-store wherever books are sold.