Anthony Horowitz

Alex Rider is now an IMDb TV/Amazon Original Series! The world's greatest teen spy is back in action in a thrilling new mission: destroy once and for all the terrorist organization SCORPIA. Americans may have purchased more than 6 million copies of Alex's adventures, but now, more than ever, we all need his heroics. …

The Silver Citadel is a book published in 1986 that was written by Anthony Horowitz.