All Paris trembled with terror as those mystery shells blasted the city. Planes searched the clouds for a lurking Zeppelin ¿ but found nothing. Up at the Front, the sky was black ¿ there was no fire to indicate a long-range gun. What was it that was smashing Paris ¿ killing women and children ¿ threatening to destroy the nerve center of the whole Allied forces? The Front waited in horror while G-8 and his two sky buddies set out to tackle this invisible menace on fighting death wings! G-8 and his Battle Aces rode the nostalgia boom ten years after World War I ended. These high-flying exploits were tall tales of a World War that might have been, featuring monster bats, German zombies, wolf-men, harpies, Martians, and even tentacled floating monsters.