Product Details

Uncover Evidence, Decode Clues & Solve the Case

Receive a case file full of clues, evidence, and puzzles when you immerse yourself in this interactive mystery each month. As you work with Lead Detective Sullivan King, you'll uncover evidence that will bring you one step closer to solving the case.
  • For all ages; perfect for parties and date nights.
  • Receive a physical case file full of clues.
  • Interact via email with Lead Detective Sullivan King to uncover additional evidence.
  • Work at your own pace. Master Detective cases take experienced puzzlers approximately 2-3 hours to solve. Rookie Detective cases for those new to puzzling take approximately 1 hour.
  • Monthly subscription automatically ends after 4 months; one standalone case delivered per month

Sleuth Kings Master Detective: Monster Madness is not available, but you'll love these other boxes!

Past Boxes from Sleuth Kings

Master Detective Case 025: The Haunting
Master Detective Case 025: The Haunting

Renea Evans' dream home suddenly became a nightmare when she began seeing apparitions and receiving terrifying messages. Convinced that her new home is haunted, she's asked Sullivan to investigate. If he can figure out the ghost's identity, Renea hopes that she can make it move on before she loses everything she’s worked for. Can you help Sullivan get to the bottom of the ghost's otherworldly messages before Renea is forced to abandon her home? Sign up to find out!

Master Detective Case 026: Sparky
Master Detective Case 026: Sparky

Celest St. Claire never expected that she’d be targeted by a dangerous stalker dressed as a giant mascot. Little is known about the stalker other than the fact that they’ve put multiple people in the hospital. With only three days to play their game and meet them face-to-face, Celest needs your help before she becomes their next victim. Can you help Celest and Sullivan find the stalker and put an end to their masked mayhem before it’s too late?

Master Detective Case 027: Krampus Kidnappings
Master Detective Case 027: Krampus Kidnappings

Asuna Yukimura has been kidnapped by Krampus the Christmas Devil. Now, being held for ransom, Asuna intends to make Krampus regret ever targeting her. She has only one option - create as much trouble as she can. Luckily, she still has her cell phone, and Sullivan is only an email away. Can you work with Sullivan to help Asuna beat Krampus at his own game and escape? Sign up today to find out!

Master Detective Case 028: Year of the Cat
Master Detective Case 028: Year of the Cat

Spencer Dye is being targeted by the serial arsonist known only as "The Cat," which means one thing – her life could go up in flames at any moment. To save herself, Spencer has only one option: find the connection she shares with The Cat. Then – and only then – will she stand a chance of stopping them. Can you help Sullivan and Spencer extinguish a burning grudge that spans decades? Sign up today to find out!

Master Detective Case 029: Love Hurts
Master Detective Case 029: Love Hurts

John Malvone broke his ex-girlfriend’s heart, and now she intends to break him. The problem is, he’s not sure which ex is coming after him. John has survived three attempts on his life so far, but his luck won’t hold out forever. If he doesn’t figure out who wants him dead – and soon – he won’t survive his spiteful lover’s next attack. Can you help John stop his ex before she decides he can’t live without her? Sign up today to find out!

Master Detective Case 030: Black Magic
Master Detective Case 030: Black Magic

Mina Yen, a Magician's Assistant, was murdered on stage during a performance. Although it's clear that the illusion was sabotaged, the police aren't sure who is responsible. Sullivan has been hired to clear the lead suspect's name, but he's not convinced that the man is innocent. If he can't find evidence that will help put the real murderer away - and fast - he's afraid it's only a matter of time before they kill again.

Master Detective Case 031: Dark World
Master Detective Case 031: Dark World

Jack Hill, the owner of Dark World - an interactive sci-fi museum - has gone missing. Sullivan is afraid he's been murdered, but Jack's wife believes that the museum holds the key to bringing her husband back. With no other leads, Sullivan's last hope is to search Dark World for any trace of Jack's whereabouts. If Jack really is still alive, Sullivan is afraid he's running out of time. Can you help Sullivan navigate Dark World's six kingdoms and bring Jack home?

Master Detective Case 032: Two Ring Circus
Master Detective Case 032: Two Ring Circus

Sullivan’s office has been ransacked and one thing is clear – the Moretti crime family is behind the break-in. The thieves were after a diamond and found one – just not the one they wanted. Instead, they stole a wedding ring that once belonged to Sullivan’s late mother. Worse, before they could sell the ring, they managed to lose it. Can you help Sullivan race against the Moretti family to get his mother’s ring back? Sign up today to find out!

Master Detective Case 033: Death Of A Stuntman
Master Detective Case 033: Death Of A Stuntman

John Malvone is dead and his killer is ready to strike again. What was supposed to be a harmless murder mystery dinner has turned into a deadly party. Nobody knows what the killer wants, but one thing is clear: if they don’t play his game, Sullivan and Celest are next. Can you help Sullivan and Celest put a stop to the twisted party before they end up dead? Sign up today to find out!

Master Detective: Monster Madness
Master Detective: Monster Madness

Sullivan King had only heard whispers about a new criminal group – until their reign of terror made things personal for him. The group – filled with self-proclaimed zombies, vampires, and other monsters – has its hand in everything from selling drugs to abducting people. Although they have police baffled, Sullivan is sure of one thing: he’s going to do whatever it takes to stop them. Can you help Sullivan uncover the group’s monstrous secret and bring them to justice?


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