Always online . . . until they want you off. Permanently.

Just imagine . . . Hundreds of apps available at the blink of an eye: skills ranging from martial artist to concert pianist, streamed directly to your brain - also known as your 'Domain'.

Orphaned teen Porter Simms agrees to test an experimental technology developed by his late parents. But there's a major catch. He is permanently online, a device of the government, and every time he uses the skills, it takes a toll on his mind.

To make matters worse, an unseen enemy wants him taken offline - for good.

Porter must race to prevent a deadly catastrophe before he loses the most important thing - himself.

A new edge-of-your-seat adventure for fans of Anthony Horowitz and Eoin Colfer.