Three teenage boys are lugging boxes of donated shoes into a stately neoclassical home in Mytilini, the capital of the Greek island of Lesbos.
Two of the boys are Syrian, and the other is Algerian. For the moment, they live in this house, a shelter for underage asylum-seekers traveling alone.
Inside, Christina Dimakou, a high-energy young lawyer, greets them. "Kalimera!" she says, Greek for "good day" and flashes a smile. The boys repeat the word, giggling.