The Trap that Lurks in the Labyrinth? (迷宮に潜む罠？) is the seventeenth chapter of the DanMachi manga.
Within the dungeon, Bell fought a group of monsters, which he defeated with ease. He was fighting better than usual due to Lili moving dead monsters out of his way. While fighting, Bell defeated a Killer Ant just as it was appearing, resulting in it being stuck halfway into the wall. Lili took the opportunity to make Bell get the Magic stone from the Killer Ant so that she could distract him and steal his Hestia Knife. Once she was done, Lili suggested that they make their way back to the surface. An unwitting Bell agreed, not knowing that his knife was stolen.