THE DOUBLE MOON: A fully illustrated chapter book mystery for readers aged 6 to 10 — two moons in the sky, one investigation, and the person who has been in all the rooms (The Whistwick Series)

In Whistwick, the weather is chosen by whoever wins the race. On Saturday night, two moons appear in the sky. Not a smear or a blur or a trick of cold air. A clean, separate, perfectly real reflection sitting below and to the left of the correct moon, rising when it rises, setting when it sets, casting its doubled light across every rooftop and cobblestone in Whistwick. The town doesn't feel wrong. Nobody is cold or frightened. But something has gone out of the nights. The lamplight does nothing against the brightness. The late bakery loses the atmosphere it depends on. Children who need proper darkness to sleep aren't sleeping. Night birds leave the garden walls. The conversations that people only have in proper darkness stop happening. Whistwick has become a town that is always observed. Under the ruins on the eastern hill, sealed since 1901, a reflective lens panel in an old observatory chamber has been tilting for over a century. Nobody knew it was there. Nobody knew what it was connected to. Casey knows what it's connected to. Because Casey has been inside all the previous rooms. The resonance chamber and the chromatic register and the ventilation corridor and the solar disc and the fountain gap. Has stood at every instrument and felt how the system worked from the inside. Has accumulated, without planning to, the kind of understanding that no document fully captures. This investigation belongs to Casey. A funny, human adventure about the knowledge that only comes from paying attention long enough, and the town that needed someone who had. Perfect for readers aged 6-10 who love mysteries, adventure, and characters who have quietly become exactly who they needed to be. The Whistwick Series: Book Six