A Shanghai-based maker of “blind box” figurines made $1.8 billion last year—and continues to grow across the world.

The unstoppable Father Brown is back for an 11th season, with plots that swing wildly from foul play to vampires.

At Open Box Liquidation in Hauppauge, Long Island, hundreds of pallets are wrapped and waiting for their mystery to be unraveled.

Mystery box websites offer an exciting way to discover new items and experiences. These platforms curate surprise packages ...