The Grim Adventures of Billy and Mandy Wiki
The Halls of Time
Halls of Time.jpg
Series Grim and Evil
Season 2
Production code 209
Writer Gord Zajac
Broadcast information
Broadcast number 9C
Cartoon Network US Premiere August 1, 2003
Paired with Grim For a Day
Sister Grim
Chronological information
Sister Grim
Billy & Mandy's Jacked-Up Halloween

The Halls of Time is the third segment from the twenty second episode of Grim & Evil.


After missing out on a school trip, Grim takes Billy, Mandy, and Irwin to the "Halls of Time" for a tour. There, Billy and Irwin fool around and tamper with the hourglasses that symbolize each person's lifespan. When they leave, they accidentally leave their own hourglasses, including Grim's, upside down, resulting in the group getting younger as time passes.

Grim then hurries back but one by one the kids start to disappear by going before birth, Grim intentionally lets Mandy disappear. However, while gloating he loses so much time that he cannot restore his own hourglass to its correct position, turns into a baby as he disappears too, leaving the episode as a cliffhanger.


  • Story by: Gord Zajac
  • Storyboard by: Mike Diederich
  • Directed by: John McIntyre, Randy Myers


  • Grim has been on the bus many times, but in this episode the bus driver is afraid of him.
  • Mandy actually cares when Irwin disappears.
  • Albeit Billy saves his dad from dying by turning his hourglass upside down, he also clearly causes him to start growing younger until he disappears just like he, Irwin, Mandy and Grim do at the end of the episode.
  • Mandy must be older than Billy and Irwin as they disappear before she does.
  • The person Billy and Irwin killed was the creator of the show, Maxwell Atoms.
  • Irwin disappeared without becoming a fetus.
  • The closeup of Irwin's hourglass shows "IRWN" written on the card, whereas all the background shots show "IRWIN".
  • This is considered one of the darkest episodes of the series due to the ending where the characters are erased from existence after failing to put their hourglasses right-side up.
  • This is only time Irwin's brother is seen in the show.
    • It is heavily implied that when Irwin threw his brother's hourglass away and it is heard shattering, Irwin's brother ceased to exist.
    • However, as Billy, Mandy, Irwin, and Grim all disappeared and reappeared in the next episode, he must be alive as Irwin later mentions him in a future episode.


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Sister Grim
Grim & Evil Episodes Next:
Billy & Mandy's Jacked-Up Halloween