Hammerspace knives, named for the generator built into the handle which allows the wielder to bring them into and out of hammerspace at will, are weapons discovered by Agents Marcus Langston and Zodfang Gobrunt during one of their missions together. The knives were first found in the hands of a Mary Sue, Talea Sallas, who used them in the fic's first chapter to assault the Designated Misogynistic Bastard, Frank Burns. Talea pinned Burns to the wall by throwing the knives through the corners of his sleeves, demonstrating ludicrous accuracy, and instantly brandished two more with which she threatened to cut his throat, before putting them all away into hammerspace and continuing as if nothing had happened.