{"chapter":"last-call-01","checkpoint":"back-room","resume":"/mystery/back-room","links":[{"title":"The cabinet’s sealed envelope","url":"/mystery/cabinet-envelope"},{"title":"Please collect your belongings before you arrive.","url":"/mystery/ticket"},{"title":"Nobody left this coat.","url":"/mystery/coat"},{"title":"The Unsent","url":"/mystery/unsent"},{"title":"The closing ledger","url":"/mystery/back-room"}],"question":"What phrase belongs on the archive door?","note":"Prepared checkpoint checklist, not a verified visit history. Personal notes stay in your browser tab until you explicitly download them; they are not sent to the server. Bookmark links contain only a public checkpoint name."}