The X-Files meets The X-Men in this digital original companion series that's set in the world of Pittacus Lore's #1 New York Times bestselling I Am Number Four series. Fan-favorite characters Six and Sam Goode return in this riveting 100-page novella that begins a new saga that coincides with the events of Generation One.

In the aftermath of a thwarted alien invasion, teenagers across the globe have begun to develop incredible powers known as Legacies.

Most are sent to the Human Garde Academy, where they can learn to harness their powers for the good of humanity. But there are still countless others who slip through the cracks, who prefer do things their own way, or who are being kept from attending the Academy by people with very different plans for these gifted teens.

That is where Six and Sam come in. They've just joined a convert group tasked with investigating suspicious incidents around the world which might be Legacy-related. Their first mission has them looking into the connection between a string of disappearances—but as they dig deeper into the mystery, they stumble upon an unexpected and dangerous Human Garde underworld.

The Legacy Chronicles novellas are published as individual digital originals, and the first three stories are also available together in one print volume: The Legacy Chronicles: Trial by Fire.