On a tiny island off the coast of Iceland, Halla and her friends wait with anticipation. Every spring, millions of puffins, the clowns of the sea, return to nest, lay eggs, and raise their chicks to pufflings. That means Halla and her friends will be busy in August when the pufflings venture out at night to take their first flight. Then, all of the children stay out all night, too. During the n…