The proprietor nodded, and with a flourish, he produced a small, ornate box from behind the counter. "Please sign the register," he said, handing Jack a quill pen.

The proprietor smiled, his eyes glinting with satisfaction. "Welcome to the Ripper Store's inner circle, Jack. Your interests are now registered. You'll receive a visit from our... associates soon."

As Jack signed his name, the store seemed to shift and change around him once more. The shelves seemed to close in, and the air grew thick with an eerie, pulsating energy.