Lila's yellow boots made happy splashes along the pebbly path to the little river. Willow branches combed the water with long green fingers. The wooden footbridge, old and friendly, hummed softly as the wind went through its boards. Nico trotted beside her, his backpack bumping with every step. Inside was the paper kite they had glued and coloured—a bright star with silver points and a tail of ribbons that whispered shhh in the breeze. In Lila's jacket pocket sat the Heart-Drum, a tiny round drum no bigger than a cookie. Its top was smooth and soft, and a red ribbon circled its edge like a hug. When Lila felt something big, the Heart-Drum felt it too. It had come from the Feelings Fair last week, when a singer with silver glasses had pressed it into her hands and said, "It listens to your heart." They had tried it all week. When Lila bubbled with giggles, the Heart-Drum did a quick patter-patter. When she worried about spelling words, it tapped slow and careful, like tiptoes. When she stood in the dark hallway at night, it gave small, brave thumps until she found the light switch. Today, the sun was shiny and the wind was just right. Lila could already imagine the star-kite sailing over the willow tops. Her stomach fizzed with excitement, and the Heart-Drum answered with a warm, steady beat. Thump. Thump. Thump. "Race you to the bridge," Nico said, and they ran, laughing, their breath making clouds that didn't show because it wasn't cold at all. They reached the bridge and leaned over the rail to watch a line of ducklings skate by. The river shimmered silver-blue. Everything felt easy and good. Then the Heart-Drum changed. Thump-thump. Thump-thump-thump. It beat faster, like a rabbit under a leaf. Lila pressed her palm over her pocket. "Do you hear that?" she asked, even though Nico couldn't hear what she felt. "I hear your pocket," he said, surprised. "It's humming." Lila pulled out the Heart-Drum. It was warm in her hand. The red ribbon gleamed in the sunlight and—was she imagining it?—a soft pink blush seemed to glow under the drum's skin. "Why is it doing that?" Nico asked. His eyes were big in a way that made Lila's own feelings grow big too—excitement stacking up on top of a little shiver. "I don't know," Lila said. "But it's pointing." She noticed that the red ribbon wasn't lying flat. It stiffened, ever so slightly, and tilted towards the side of the bridge. They followed the ribbon's point to a place where the bridge's boards met the stone. Lila had crossed this bridge so many times she could have drawn it with her eyes closed. But today, at knee level between two worn boards, was a small carving she had never seen before. It was the size of a dime: a teardrop shape with tiny sun rays around it. "Have you ever seen that?" Lila whispered. Nico shook his head. "Nope. Do you think it's new?" He reached out, then tucked his hand back. "It looks... special." The Heart-Drum's beat quickened as Lila leaned closer. Thump-thump-thump-thump. She touched the carving with one finger. The wood felt smooth and warm, like it had been waiting in sunshine. The drum thumped so fast it tickled her palm. Click. The board shifted under her fingertip. It didn't slide like a drawer or swing like a door. It breathed—the tiniest sigh of wood and wind. Then a thin line of golden light drew itself around the carving, like someone tracing it from the other side. "I saw that," Nico said. He wasn't pretending to be brave now. He was being real-brave, the kind where your voice shakes but you still speak. Lila felt her own brave rise to meet his. "Me too." The thin line of light widened. A small panel eased forward and became a door—no taller than Lila's hand. Its knob was a metal teardrop, and around the teardrop were painted tiny faces: one laughing, one yawning, one surprised, one with a single tear. The faces were so gentle it made Lila's chest ache a little. A duck quacked, then fell quiet, like it was listening. Even the willow leaves seemed to hold their breath. "What do we do?" Nico asked. "We could knock," Lila said. Her voice felt like a kite string in her chest—pulled, but not breaking. "Or we could wait." The Heart-Drum thrummed steadily in her hand, and the pink blush warmed to a dewy glow. Lila lifted it, without planning to, and held it near the tiny knob. The drum sent out the softest hum, like a bee with a secret song. The knob warmed under her fingertips, just a little. Something answered from the other side. It was a sound, but not quite a sound—more like the feeling of a song when you are about to sing. A gentle gathering. A hush that made the hairs on Lila's arms stand up and made Nico's backpack stop bumping because he was standing so still. "I feel brave-scared," Lila whispered. "Me too," Nico said. He reached for her free hand, and she held on. They listened. The tiny door gave the smallest tremble, as if it were nervous and excited too. A thread of warm light slipped from the edges and traced a soft line across Lila's knuckles. The air smelled for an instant like cinnamon toast and rain on a sidewalk and fresh crayons on the first day of school—all the times Lila's heart had thumped this way before. "Hello?" Lila called, in a small voice that still knew what it wanted. "It's us." From the other side of the door came a hush of air, a little breath, like a giggle trying to be quiet. The teardrop knob twitched. It turned. Once. Twice. And then, with the Heart-Drum beating wild and bright in Lila's hand and Nico's fingers squeezing hers in a we're-in-this-together squeeze, the tiny door began to open.