An immersive mystery in your inbox
The Circular
Staircase
Sunnyside was supposed to be quiet. Then the house began to keep secrets, and Rachel Innes started writing them down for you.
The story
Every house has a way in. This one has a way out.
Rachel Innes arrives at the secluded Sunnyside estate expecting a summer away. A violent death changes that. An east door bears fresh scratches. A cufflink turns up where it should not. The floor plans disagree with the house itself.
Rachel sends you what she finds: her account, photographs, clippings, sketches, and documents. Each letter draws you farther into the people and passages of Sunnyside. The mystery unfolds over twelve weeks, one discovery at a time.
“I have no intention of leaving this house until I know what happened in it.”
How it works
Open the letter. Follow the evidence.
Your first letter
A welcome note arrives after purchase. Rachel’s first letter follows about fifteen minutes later.
One each week
Eleven more letters arrive seven days apart. See the images in each email and keep the original files attached.
Write back
Send Rachel a question or theory if you wish. Replies are optional; the complete story continues either way.
The complete digital series
Twelve weeks inside Sunnyside.
All twelve letters, the photographs and artifacts, and optional correspondence with Rachel Innes.
A fictional story inspired by Mary Roberts Rinehart’s public-domain novel. Delivered by email; no physical mailing.