Complete the puzzle to see the next clue

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Across
  1. 3. A point of infinite density at the centre of a black hole
  2. 5. Sherlock Holmes's brother
  3. 8. Who got their first tooth in Gabby's Dollhouse
  4. 9. D and D super baddie that can swallow players whole
  5. 13. Isadora Moon's witch fairy cousins are Mirabelle and whom
  6. 17. Space observation device named after James Webb
  7. 19. The real first name of Vaurien Scapegrace's first zombie minion
  8. 22. The colour of Isadora Moon's rabbit
  9. 23. Where Monkey thinks he has crash landed in Bunny Vs Monkey
  10. 24. Gila monsters eat these
Down
  1. 1. The only mammal with scales
  2. 2. This metal is found in Captain America's shield
  3. 4. The month in which Skullduggery Pleasant died
  4. 6. Kronos's sister and wife
  5. 7. Spiderman has an aunt named after which month
  6. 10. The room in which Dumbledore's army meets
  7. 11. What is the name of Frodo's sword
  8. 12. This country's flag features a parrot
  9. 14. The kind of Pig featured in Bunny Vs Monkey
  10. 15. The densest naturally occurring element on earth
  11. 16. This country's flag is not a rectangle
  12. 18. Smallest country in the world
  13. 20. The conductor of the Knight Bus
  14. 21. Harry Potter's middle name