Digital Invitation for a Black Cat Rooftop Halloween

Half past nine on the thirty-first. The pumpkins are lit on the step, the string lights are up on the roof, and the WhatsApp group called "black cats only" has forty-one unread messages. Nobody knows what time to come. Two people asked if they can bring a friend, one asked what counts as a costume, and the person with the speaker is still waiting for an address. A digital invitation from the catalogue sorts this in one go: pick a design, drop in the photo of the rooftop, publish the link today and go back to carving.

This piece is about that night: a black cat Halloween on a rooftop with the gang, Halloween invitations sent over WhatsApp, and confirmations that land inside the invitation instead of in your notifications.

Digital invitations for Halloween on WhatsApp: one photo, 22:00, confirm by Thursday

The message that gets answered is short. A photo of the rooftop with the lanterns already on, and one line underneath: "Saturday 31, 22:00, rooftop at Marta's. Confirm by Thursday." Nothing else in the chat. Anything that needs explaining — which door, whether the lift still works after eleven, when to arrive if you want a chair — goes inside the link, where people read it once and stop asking.

• A vertical photo of the rooftop with the lanterns on and the carved pumpkins lit, nobody in the frame.
• The time written out in full — 22:00 — with the date and the day of the week next to it.
• A deadline in the same message: "confirm by Thursday", not a polite hope.
• One dress code line that needs no explaining, like "black cat, nothing that needs two people to get into", never as a separate PDF.

How much a digital invitation costs, and where the RSVPs land

29.99 EUR, paid once. No subscription, no paper, no shipping, and nothing for your guests to install: they open the link in the browser on their phone and reply from there. Confirmations arrive in one ordered list inside the invitation, so you don't have to rescue "I'm in" from between sixty pumpkin memes and a video of a cat knocking over a candle.

You write the RSVP questions yourself: who can come up early to help with the lights, who's bringing ice, who's staying to sweep the roof on Sunday. And if the forecast turns and the rooftop has to become a living room, you change the time or the place in the editor and the link stays exactly the same. Nobody resends anything, and the friend who opens it on Friday night sees the updated version.

One link with a photo, a time and a deadline fills a rooftop. Sixty messages in a group chat fill a screen.

Black cats on the rooftop: what to put in and what to leave out

Put in the date, 22:00, the rooftop, a dress code you can follow without asking — "black cat, no masks that make eating impossible" — and one line of mystery, like a bell at eleven that nobody is allowed to explain. Leave out the rest. Up to six of your own photos fit in the invitation: the empty rooftop at dusk, the lanterns, the cat from the doorway watching you carry chairs upstairs. They frame themselves, and you tick which one is the cover. Music is chosen inside the invitation too, so people arrive already in the tone you set: if it sounds like a mystery film, they climb the stairs expecting something. If someone in the gang wants a copy in hand, print three or four and keep the link for everyone else — the invitation is digital, so there is no stack of cards to hand out.

Pick a design, test the cover without paying and publish the link before Thursday. Then the only thing left is the roof, the pumpkins and a cat that refuses to come inside.