Barnaby and Iris, siblings focused on the Advent Calendar traditions, discover that the crystalline sugar intended for the daily treats is failing to set properly. Iris notices her pure silver measuring spoon feels sluggish and dull after contact with the sugar, suggesting a magnetic or resonant interference affecting the crystals. Barnaby connects this instability to the wider town crisis, referencing the fading colors and structural anomalies reported elsewhere. They hypothesize that non-metallic material used to dampen vibrations in the Old Ice-Sculpting Workshop might be the key to purifying the sugar. They set off for the workshop to find felt padding, bringing the silver spoon as potential evidence.