Every Investigation File has been researched, documented, and organized to help you explore evidence rather than assumptions.
Browse by collection below.
Each collection contains Investigation Files organized by subject and investigation number.
As the library grows, new investigations will be added regularly.
š¢ Investigator Library
The Investigator Library contains the collection of Investigation Files available to all free members. Browse professionally researched investigations organized by collection and subject, and begin exploring the evidence behind some of history's, science's, technology's, and society's most fascinating questions.
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šµ Researcher Library
The Researcher Library expands your access to the complete member investigation collection. Explore hundreds of additional Investigation Files, organized for deeper research across every major collection and subject.
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š” Archivist Library
The Archivist Library provides complete access to the entire Second Look archive, including every Investigation File, Deep Dive Investigation, Research Journal, Library Collection, State of Curiosity Report, and other premium publications.
