Uran

On his most recent birthday, Astro Boy received an amazing gift-something he had always wanted... a little sister! She was a gift of Doctor Packaderm us J. Elefun, head of the Institute of Science, and she was the image - the very image - of Astro Boy, but with pigtails. Her name was Astrogirl. A guileless child, in effect "born yesterday," Astrogirl somehow found herself in the clutches of an eccentric inventor who had perfected a method of doubling things. In no time at all, there were two Astrogirls each identical to the other. Not even Astrogirl herself could recall which was the original, and which the duplicate. When one Astrogirl became enmeshed in a shady plot to exploit her talents (which were nearly as formidable as Astro Boy's,) it took the other Astrogirl, plus Astro Boy, plus the entire Institute of Science to determine which Astrogirl was involved and how to save her!