Trials of Glass

When a small fireteam of Guardians goes to investigate a massive Vex signal coming from Venus and doesn't return, the Vanguard sends Excalibur Squad, a group of Titan commandos, to safely retrieve the fireteam and bring them back to the City. But what they find on Venus is more than just a group of dead Guardians- it's an adventure that takes them into the very heart of Venus; where they will face true evil, and where nothing is their ally.

Not even time.