Klisto

Previously

…"What now?" Marius asked. "Now I go home," she said. "And I write her story." But as she unlocked the car door, her phone buzzed once more. Another message from the unknown number: "The painting has a hidden compartment. Check the back of the canvas." Klarina's breath caught. She turned the painting over. There, taped to the back, was a small envelope. Inside was a single key and a note: "For the box in the attic. Love, Mom."