It's December 31st, and Zephyr Stone is counting down the seconds until the new year. When she receives a call from Grandma June about a ghost appearing in her kitchen, Zephyr knows she's in for another spectral adventure.

Only able to leave clues on frosted glass and through indoor snowstorms, the silent Frosty Phantom challenges Zephyr with her strangest and chilliest case yet. Delving deeper into the mystery of the ghost and his strange bowler hat, Zephyr must also navigate the perplexities of being a preteen, mainly: her first crush.

Join Zephyr and her trusted gang in this heartwarming tale of friendship, courage, and the enduring power of love.