Ho-ho-d'oh

 a limited-time questline that was released on December 26, 2021. It the main questline for Act 3 of the Holiday Whodunnit 2021 Event, progressing through it  all of the Act's personal prizes. It preceded by the main Act 2 questline, No Business Like Snow Business. It succeeded by the main Act 4 questline, Sleighing It.

Quests
*Only appears if the player has Maggie.

**Only appears if the player has Gnome-in-the-Home.

***Only appears if the player has Mary Tannenbaum.

****Only appears if the player has Smithers.

*****Only appears if the player has Santa Claus.

******Only appears if the player has Dr. Hibbert.

End
"Drive the Sleigh"

- System Message.