Imaginary creatures

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Across
  1. 1. EVIL, BORN FROM THE GROUND, OF SCANDINAVIAN ORIGIN
  2. 5. THEIR MOST WELL-KNOWN REPRESANTIVE IS THE TEACHER OF ACHILLES
  3. 7. IT IS OF IRISH ORIGIN
  4. 8. ONE OF THEM HELD THE SKY IN HIS ARMS
  5. 9. IT IS A SYMBOL OF REBIRTH
  6. 10. IT TAKES SHAPE WITH FULL MOON
Down
  1. 2. IT RUNS THE FASTEST OF ALL
  2. 3. IT USUALLY LIVES IN YOUR GARDEN
  3. 4. THEIR MOST FAMOUS REPRESENTATIVE ATE PEOPLE ALIVE IF THEY COULDN'T ANSWER A RIDDLE
  4. 6. IT FEEDS ON BLOOD