Synopsis
Sequel to *Rockets in Ursa Major.* The invaders have been fought off, but the Yela - terrifying opponent of all other life forms - has propelled a giant cloud of hydrogen toward Earth. Should it reach our atmosphere, the entire world will go up in flames. The combined Earth forces take to space, under the leadership of physicist Dick Warboys and his three alien friends. But instead of system-wide warfare, the Yela captures the leaders' ship and takes it on an incredible interstellar journey, to a place where now man was meant to go!
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