Nic loves to perform magic tricks, but after the girls at school made fun of her, she hid her passion, thinking she'd never be good enough.

When Nic's class goes on a school trip to the Thames Tunnel to celebrate its famous Fancy Fair, she sees her two bullies vanish. Curious to find out what happened, she steps through a mysterious alcove and finds herself at the original Fancy Fair—over one hundred and fifty years in the past!

Meanwhile, Nikolai's life isn't going so well. Another magician has taken his dad's spot to perform, and his brother, Amos, has gone missing. With rumours of kidnapped children spreading through town, Nikolai is worried. Then, out of nowhere, a mysterious girl appears, claiming she's from the future—and says that two of her classmates have disappeared.

To solve the mystery, Nic and Nikolai must work together. But can a neurodivergent girl from the present, a magic-student failure, really help a boy who's a master at designing tricks and picking locks? Nic isn't so sure, but she knows she has to try!