Caller Unknown — Murder Mystery Elimination Puzzle
Caller Unknown — Murder Mystery Elimination Puzzle
Study 5,000+ call records in Volume 1.
Follow 20 clues and compare the evidence.
Eliminate suspects until one name remains.
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Caller Unknown — Murder Mystery Elimination Puzzle
What’s inside?
What’s inside?
The original Volume 1 contains 1,000 suspects, 5,000+ call records, 20 elimination clues, progress checkpoints and a complete solution.
Shipping & delivery
Shipping & delivery
This is a physical printed book delivered to your shipping address. Available destinations, shipping charges and delivery options are shown at checkout.
1,000 suspects. One call could change everything.
A hotel executive is dead. The original Volume 1 places the evidence in more than 5,000 call records linked to 1,000 suspects at the Harrington Grand Hotel.
Compare contacts, call times, durations and hotel towers. Keep the names that fit. Cross out the ones that do not.
Stop scrolling. Start investigating.
A printed mystery, a pencil and an evening to think. Follow the clue trail at your own pace and use the Volume 1 checkpoints to review your deductions.
Work through the evidence alone or compare theories with someone beside you. The investigation stays on the page.
How the investigation unfolds
Bring both volumes home. Make it a bundle.
Choose Volume 1 or Volume 2 for $24.95, or bring home both physical volumes for $39.95. That is $9.95 less than buying the two books separately.
Select your edition above. The contents described on this page refer to the original Volume 1. Cover images are visualisations and printed details may vary by edition.
Before you investigate…
What is Caller Unknown?
What is Caller Unknown?
A physical murder-mystery elimination puzzle book. In Volume 1, you study call records and use the clues to narrow 1,000 suspects down to one killer.
Is this a physical book?
Is this a physical book?
Yes. This listing is for an English-language printed paperback delivered to your shipping address.
How does the investigation work?
How does the investigation work?
Read the clues and compare contacts, call times, durations and hotel towers. Cross out suspects who do not match the evidence.
What if I get stuck?
What if I get stuck?
The original Volume 1 includes checkpoints and a complete explained solution so you can review your reasoning.
Who is it for?
Who is it for?
Adults and teens who enjoy murder mysteries, logic and evidence-based elimination puzzles.
What do I need?
What do I need?
The book and a pencil or pen. An eraser is useful if you want to revisit a deduction.
Can we solve it together?
Can we solve it together?
Yes. Work through the clues on your own or share the book and compare theories with someone beside you.
Which edition should I choose?
Which edition should I choose?
Choose Volume 1, Volume 2 or Both Volumes (Vol 1 & 2). The counts and contents described on this page refer to the original Volume 1. Product images are cover visualisations; printed details may vary by edition.
Need a hand?
Have a question about the book or your order? Contact avantala@outlook.com. Include your order number when relevant so we can help.