Mika wandered the morning streets barefoot, her socks tucked into a pocket like a keepsake. She’d come for the Pink Gum Festival, which only happened every five years when the island’s gum trees bloomed: sticky blossoms the size of lanterns that hummed with quiet music. Locals said the gum held memories — if you chewed a cob of blossom, you could taste another person’s happiest hour.