The Casebook A working ledger
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Pricing / Membership ledger

A clearer case for every team

Keep each thread, source, and conclusion in one orderly casebook, with room to follow the evidence as the work grows.

For a first enquiry

Reader

£ 0 / month
  • One active case
  • Three collaborators
  • Evidence notes and timelines
  • Monthly casebook export
  • Monthly dispatches
Get started

No correspondence required

For the active enquiry

Investigator

Recommended
£ 18 / seat / month
  • Unlimited active cases
  • Ten collaborators per case
  • Clue links and source trails
  • Private casebook exports
  • Full revision history
  • Priority dispatches
Start trial

Thirty days to examine the fit

For a lasting archive

Archive

By brief tailored access
  • Unlimited case rooms
  • Custom member permissions
  • Audit-ready case history
  • Guided migration
  • Dedicated correspondence
Contact sales

A considered reply within one day

This is the Sherlock Holmes — Baker Street (1887) design system, applied by Curio — a design-style library for AI agents. Full Sherlock Holmes — Baker Street (1887) guide → designbycurio.com/learn/sherlock-holmes-baker-street-1887