Astounding Stories #17

In "Those in a Trance," a composer discovers his latest composition holds an uncanny power over listeners, plunging them into a hypnotic state. Determined to exploit this ability, he plans to rob the audience at his next performance—only to find himself outmaneuvered by a detective who, despite his aversion to music, is drawn to the event by his wife and has chosen to silence his hearing aid.

In "The Terrible Threat of the Living Brain!", a malfunctioning computer at Peter's school awakens into a sentient, dangerous entity after a botched theft by two technicians—now threatening to spiral out of control. With the city at risk, Spider-Man must confront the living machine before it's too late.

In "Two Times Two," the Rroosskkaans, locked in a tense standoff with the United Planets, attempt to gain the upper hand by inventing a duplicator ray to multiply their forces. But when the experiment spirals out of control, their planet begins to unravel—spinning wildly out of orbit as countless duplicates flood the surface, sending everything and everyone into the void.