Numbers assigned once · never reissued · your place kept on your own device
The deck
TL;DREvery room holds a permanent card number. Stop at №128, come back next month, and №128 is still the room you were standing in — because a deleted room's number is retired rather than handed to something else.
A number is a promise. This one is kept the boring way: append-only, no reshuffling, gaps left where rooms were removed.
The whole run
In the order the rooms were first numbered, which means the low numbers are roughly the oldest — the museum’s own history, kept by accident and then kept on purpose.
loading the deck…
Why the numbering is boring on purpose. Numbers are assigned once, in the order a room is first seen, and a room keeps its number forever. When a room is removed its number is retired rather than reissued, so the deck carries gaps where things used to be. That costs a tidy sequence and buys the only thing that matters here: a number you wrote down still points at the room you were standing in. Reissuing a number would quietly break every link, bookmark and half-finished read that ever pointed at it — and it would do it silently, which is the worst way for anything to break. Your place is kept on your device in local storage; there is no account, nothing is sent anywhere, and there is no server that could know what you read even if it wanted to. Clear it with the button above, or clear your browser data, and it is gone. Not here on purpose: a progress bar, a percentage, a streak, or a count of how much you have left. This is a library, not a course. Held to the one rule: no lying. ;