QuizKnock, operated by baton Inc., announced that it will hold the puzzle-solving event, レイトン教授と秘密の招待状 in 東京ドームシティ (Reading “Layton Kyoju to Himitsu no Shoutaijo in Tokyo Dome City,” meaning Professor Layton and the Secret Invitation in Tokyo Dome City), in collaboration with the puzzle adventure game series, Professor Layton, from Thursday, September 10 to Sunday, December 20, 2026.
Online ticket sales began on Monday, August 10, 2026.
Note: This article is based on information published in Japan.
QuizKnock Collaborates With the Professor Layton Series! Puzzle-Solving Event Held at Tokyo Dome City & Online Ticket Sales Underway
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今年も東京ドームシティで
謎解きイベント開催決定!
\#QuizKnock が仕掛けた謎を、レイトン教授とともに解き明かせ!?「#レイトン教授と秘密の招待状」は9/10(木)から開催✨
詳細は明日発表予定ですのでお楽しみに!#QuizKnock10周年プロジェクト pic.twitter.com/63Xeaqc90R— レイトン教授と秘密の招待状【QuizKnock】 (@quizknock_tdc) August 9, 2026
QuizKnock and the Professor Layton series collaborate!
Starting Thursday, September 10, 2026, QuizKnock will hold a puzzle-solving event at Tokyo Dome City.
- Event Name: レイトン教授と秘密の招待状 in 東京ドームシティ
- Period: Thursday, September 10 – Sunday, December 20, 2026
For three consecutive years from 2023 to 2025, QuizKnock hosted Tokyo Discovery City!, a puzzle-solving event set in Tokyo Dome City.
In 2026, as part of the QuizKnock 10th Anniversary Project, a special collaboration with Professor Layton is taking place.
The event's key visual features a completely original illustration created by LEVEL-5 Inc., developers of the Layton series.
It is a gorgeous visual bringing together QuizKnock members dressed in 10th Anniversary Project outfits and Professor Layton in the same world!
4 Puzzle-Solving Courses in Total! Puzzles Created by NazoLock, QuizKnock's Own Puzzle Creation Team
PR TIMESA single secret invitation arrives for Professor Layton.
The sender: QuizKnock.With a mountain of puzzles set up by QuizKnock, the city of Tokyo is in a festive frenzy.
Amidst the excitement, an invitation reaches Layton's hands.
"A secret puzzle that no one has solved yet. We would love for you to unravel it."
What is the true reason behind these puzzles?
What is the true identity of the secret puzzle?
With invitation in hand, set off on a puzzle-filled adventure!
(Translated from Japanese)
The puzzle-solving stage is set in the city of Tokyo, buzzing with excitement over the vast array of puzzles crafted by QuizKnock.
The story begins with a single secret invitation delivered to Professor Layton.
4 Puzzle-Solving Courses
Players can tackle puzzles individually at their own pace or play together in groups with friends and family!
- Izawa & Fukura's Inspiration Course
- Sugai & Tsurusaki's Numbers Course
- Yamamoto & Kawamura's Kanji Course
- Mon & Gon's Quiz Course
The puzzles are crafted by NazoLock, QuizKnock's dedicated puzzle creation team.
Unravel a rich variety of puzzles using your own flashes of inspiration!
Get Them With the Puzzle Kit! Value Coupon Book and Exclusive Stickers
\チケット販売開始?️/
9/10(木)から開催の「#レイトン教授と秘密の招待状」、本日よりチケット販売がスタート!#QuizKnock が仕掛けた謎を、レイトン教授とともに解き明かせ!?#QuizKnock10周年プロジェクト
— レイトン教授と秘密の招待状【QuizKnock】 (@quizknock_tdc) August 10, 2026
Purchasing the event's puzzle kit unlocks a coupon book usable across Tokyo Dome City and exclusive stickers!
Coupon Book
Purchasing the puzzle kit comes with a coupon book valid at over 50 eligible facilities and shops within Tokyo Dome City!
Since the event has no time limit, you can use the coupon book to enjoy shopping between puzzle sessions.
Exclusive Stickers

By spending 1,000 yen or more (tax included) at participating shops in Tokyo Dome City and presenting your puzzle kit or coupon book, you will receive an Exclusive Sticker as a bonus!
- First Half: Thursday, September 10 – Saturday, November 7, 2026
- Second Half: Sunday, November 8 – Sunday, December 20, 2026
Professor Layton Special Collaboration Event Starts September 10!
QuizKnock's Professor Layton and the Secret Invitation in Tokyo Dome City opens on Thursday, September 10, 2026!
Online tickets are available for 2,800 yen (tax included) on the Official Event Website.
Check official X for Professor Layton and the Secret Invitation (@quizknock_tdc) for the latest event news!
| Event Overview | |
|---|---|
| Name | QuizKnock x Professor Layton: レイトン教授と秘密の招待状 in 東京ドームシティ ~QuizKnock 10th Anniversary Project~ |
| Period | Thursday, September 10, 2026 – Sunday, December 20, 2026 |
| Location | Tokyo Dome City |
| Fee | 2,800 yen (tax included) |