Episode Gallery Transcript

Numberblock Castle is the twenty-ninth episode of Numberblocks.


Numberblocks 1, 2, 3, and 4 have an adventure in Numberblock Castle. 2 wonders how to get in. They see a switch, but none of them are tall enough to reach it. They need a Numberblock that's bigger than 4, which is 5.

4 + 1 = 5

5 is tall enough to pull the switch to open the castle door. After that, she separates into 1 and 4. The 4 Numberblocks all go inside. In the first room, which is a dead end, 4 sees a dice, which reminds him of Numberblock 6. Maybe 6 can know how to go to the next room.

4 + 2 = 6

6 raps and rolls a 3, and a door to the next room under 3's portrait appears. 6 separates into 2 and 4 before they all go. In the next room, they see 7 doors, each in a color of the rainbow. As they wonder which door leads to the next room, they know that 7 can help them.

4 + 3 = 7

7 opens the violet door and separates into 3 and 4 before the Numberblocks proceed. In the next room, as 3 walks to a square-shaped door, the floor creates a big hole in front of her. They think they are stuck, but 1 says they need someone to swing from the flagpoles to the door. 3 wonders how to get 8.

4 + 3 + 1 = 8

"Octoblock, swing, 1-2-3-4-5-6-7-8, swing!" 8 swings 2 to the other side and separates into 1, 3 and 4. They've come to the door, but 1 isn't strong enough, not even 4 when he's arranged in a square. They need a stronger square: Numberblock 9!

4 + 3 + 2 = 9

9 opens the square door before he separates into 2, 3 and 4. In the last room, Numberblocks 1-4 see, count, and put on 4 crowns. Then the door shuts itself. The 4 Numberblocks think they are stuck, but they see a hole in the ceiling. Maybe 10 could rocket them out of the castle. How do they get 10?

4 + 3 + 2 + 1 = 10

"10-9-8-7-6-5-4-3-2-1, blast off!" 10 rockets to the hole and out of the castle and separates into 1, 2, 3 and 4. What a great adventure the Numberblocks had!


  • This is the second time 10 becomes a rocket, the first being Blast Off.
  • 4 appears in every equation in this episode.
  • 4 and 8 are the only Numberblocks who have only two arrangements in this episode.
  • This is the third time 10 stays arranged vertically through the entire episode.
  • 9 is the only Numberblock who has no vertical arrangement, making this episode the second episode where 9 stays as a square the entire episode, the first being Nine.
  • This is the third time 9 doesn't sneeze for the whole episode, the first being Blast Off and the second being Odds and Evens.
  • This is also the first time 9 doesn't sneeze when he's square.
  • 3's portraits from this episode are used in 3's counting game in Numberblocks Make & Play.
  • This episode and "I Can Count to Twenty" are the 2 Numberblocks episodes to air on Halloween Day 2019.


  • After 1 and 2 fail to pull the switch, they stay frozen while running off the frame.
  • 3 somehow wears a red crown. Because if she has two crowns one will fall off. It's possible that the red crown could be her hair, or an appendage.


Numberblocks episodes
Here are all the Numberblocks episodes.

Series 1

High Five!

One, Another One, Two, Three, One, Two, Three!, Four, Five, Three Little Pigs, Off We Go, How to Count, Stampolines, The Whole of Me, The Terrible Twos, Holes, Hide and Seek

Ten out of Ten

Six, Seven, Eight, Nine, Ten, Just Add One, Blast Off, Counting Sheep, Double Trouble, The Three Threes, Odds and Evens, Fluffies, The Two Tree, Numberblock Castle, Ten Green Bottles

Series 2

Number Fun

Once Upon A Time, Blockzilla, The Numberblocks Express, Fruit Salad, Zero, Now We Are Six To Ten, Numberblobs, Building Blocks, Peekaboo!, Hiccups, What's the Difference?, Numberblock Rally, Five and Friends, Octoblock to the Rescue!, Ten Again

Fifteen and Friends

Flatland, Pattern Palace, The Legend of Big Tum, Mirror, Mirror, The Wrong Number, Eleven, Twelve, The Way of the Rectangle, Ride the Rays, Block Star, Thirteen, Fourteen, Fifteen, Tween Scenes, Step Squads

Series 3

Season 5

Fifteen's Minute of Fame, On Your Head, Ten's Place, Balancing Bridge, Sixteen, Square Club, Seventeen, Eighteen, Loop the Loop, Nineteen, Twenty, Tall Stories, Flights of Fancy, I Can Count to Twenty, Heist

Season 6

Sign of the Times, Fun Times Fair, The Lair of Shares, Terrible Twosday, Divide and Drive, Twenty-One and On, We're Going on a Square Hunt, Thirty's Big Top, Land of the Giants, Fifty, Sixty's High Score, The Big One, One Hundred, One Thousand and One, More To Explore

Upcoming (confirmed)


Numberblocks Theme Song

Fourth Wall Breaks

Community content is available under CC-BY-SA unless otherwise noted.