Junior detective party
Young detectives dust for fingerprints, decode messages and interview suspects to solve the case of the missing cake.
- Guests
- 6-14 children
- Party length
- 2 hours
- Prep time
- Half a day
- Ages
- 7-12
What it could look like
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What it is
A mystery party for kids. The birthday cake has been “stolen” and the guests must find out who did it. They learn detective skills, then use them to follow clues around the house.
Plan ahead
- One week before: write the story. Choose 4 “suspects” (family members or toys) with an alibi each, and decide who did it.
- Two days before: make 6-8 clues: a footprint, a hair, a torn piece of fabric, a coded message, a fingerprint.
- The day before: hide the clues and the cake.
Activities
Fingerprinting
Rub a soft pencil on paper, press a finger on it, then lift the print with clear tape. Compare with the prints on the “evidence”.
Secret codes
Teach a simple shift code (A=B, B=C…). Detectives decode the ransom note.
Invisible ink
Write with lemon juice or a UV pen and reveal it with a torch.
Clue hunt
Each clue rules out a suspect. Give teams a “suspect board” to tick off.
Food and drink
- “Evidence bags” of popcorn
- Magnifying glass biscuits (round biscuits with a jelly sweet window)
- Sandwiches labelled “Case 001”
- The rescued cake
Tips
- Make sure the culprit is a grown-up or the dog, not a guest.
- Pair younger children with older ones for reading clues.
On the day
- Detective academy (15 min): ID badges, magnifying glasses and notebooks.
- The crime (5 min): the birthday cake has gone missing - only a ransom note is left.
- Detective training (25 min): fingerprinting, secret codes and invisible ink.
- Clue hunt (25 min): find clues around the house and rule out suspects.
- Food (20 min).
- The accusation (10 min): detectives name the culprit and find the cake.
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