The Dragon's Fang is a two-handed weapon of xenos manufacture. The blade is massive for even a Space Marine to wield comfortably. It is made of an unknown living metal that is responsive to the wielder. It was named by Forge Master Greyweaver.
This weapon was retrieved from the depths of a tomb complex in the underground of the Dead World Hestus, by a Deathwatch Kill-team under the command of Watch Captain Servais. It was then held in stasis for a decade, until the Inquisitor Adrielle Quist declared it safe to be used by any Deathwatch space marine in the Jericho Reach.