Misión 1/1000 by Clark Carrados

This Spanish-language pulp magazine issue from April 1980 presents "Misión 1/1000" by Clark Carrados, a science-fiction adventure. The story follows secret agent T-10 (Clyde Hobart), who is reluctant to accept a covert mission. General Davidoff and Professor Ralston have been tasked with recovering stolen classified documents from the enemy stronghold Kuastil, held by the strategically cunning Gudrun Tsowrril. They plan to deploy an infiltration agent using the mysterious "Procedimiento R." Meanwhile, Hobart relaxes by fishing and encounters Dr. Hunt, an attractive but accident-prone scientist butterfly-collecting nearby. After Hobart destroys his communication device, chaos erupts: water floods the command center (apparently due to Dr. Hunt's negligence), electrical systems explode, and the command complex becomes uninhabitable. When Hobart discovers himself mysteriously shrunk to insect-scale size in an enlarged landscape of giant flora and fauna, he encounters the same young woman, now proportionally enormous. Together they battle a gigantic, aggressive butterfly—a creature far removed from the peaceful insects one might expect.