Spicy Harissa Mocktail

In small, dry saucepan, shake cinnamon stick over medium heat until it begins to smell aromatic. Add water, generous sprigs of thyme, agave syrup, and harissa. Stir over medium heat until simmering and blended. Fill highball glass with ice cubes. Strain mixture overtop and fill glass with flat or sparkling soda; garnish as desired.