Diamond Heist kid's mystery party

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Mancy Crew Volume II - detective themed mystery party for all girls - ages 12+ for 7-12 guests! Get ready to do some serious sleuthing and have a blast solving a fun and challenging mystery at River Peak High School!

Select the party ready option above, and our staff will fold and slip the clue cards for rounds one, two, and three into the envelopes to prevent you from seeing spoilers on the round cards. If you do not select this option, you will have some assembly required with your kit.

Note: for the younger aged guests (10-12 years), parent hosts might need to give assistance with clues and sleuthing! 

Three out of ten for difficulty

Helpful Links:

Click here to view the character list!
Click here for the free, printable invitation!
Click here to view the 8 character expansion pack (4 girls, 4 boys) character list  and click here for the invite that includes the expansion pack players
Click here to view sample game materials.
Click here for the downloadable version.
Direct your guests to the corresponding invitation site at 'Your Mystery Party'

Mystery Synopsis:

Mancy Crew is a senior at River Peak High School. With a natural talent for investigation, she founded the River Peak High Forensic Science Club, which has even assisted the police department on occasion!

Mancy received word from the local police about a diamond heist at Hemsberg Diamonds Jewelry Store in the town of River Peak. The Zamkiki Diamond is the fourth largest diamond in the world, and was on display at Hemsberg Diamonds until jewel thieves broke into the store and stole it from the case!

The River Peak Forensic Science Club has agreed to assist the police in the investigation since there was evidence of the thieves having ties to River Peak High! The club members are set to meet at Hemsberg Diamonds Jewelry Store. Mancy will brief the group upon arrival, but she also has a few stress-relieving games planned to break up the meeting. As Mancy says - relaxed sleuths are effective investigators!  Rumor has it there may be codes to break and riddles to solve before the jewel thief can be found. This is where your story begins.

If you wish to host this (or any other) game for profit, you will need a commercial license - click here. 

Minimum age:
10 years
Difficulty rating:
Straightforward, 3/10
Gender of character roles:
All Female (with the exception of 4 males in the larger kit size).
Minimum # of players:
7 players
Kit sizes:
2 different kit sizes, 7-12 players & 7-20 players.
Expandable teams?:
Date of publication:
Last revised on 2/2/18
Unique content:
Menu suggestions & bonus party games


  • 5
    Absolutely fantastic fun!

    Posted by Unknown on Mar 17th 2017

    I ordered this for my daughter's 12th Nancy Drew mystery themed birthday party and it was fabulous! The girls enjoyed it so much. The product itself is so well organized, thorough and well presented I would highly recommend it. Two thumbs up!