The white wagtail scurried ahead and stopped, to glance back at us, bobbing his tail and wheezing his shrill chirrup, urging us to “Hurry, hurry! Come, right this way! It’s just a little further! Hurry!” When our bicycles neared just enough to loom over him, the loaded panniers brushing the grass at the edge of the asphalt, he popped up into the air and darted further up ahead, to repeat his encouragements. For more than 2500 kilometers it seemed he led the way, the same wagtail, forever ahead of us, like the second hands of a clock.