Hakuba heard the whistle and wrinkled his nose, but he did head outside, he heard the whistle a second time and decided to leave down a back ally. He paused there to catch his breath, and to get a hold of himself. There was just something about the thief worrying him that scared him, because worry meant attachment, and attachment meant they were no longer just a detective and a thief; he hated mixing business with pleasure, it would never end well.
Hakuba would catch Spider and then head back to London; Japan was much too dangerous.
The doves flew down around the perimeter of the buillding, some landing while others flew around. One hovered on front of the alley where the detective was resting, tilting it’s head and cooing softly. It ruffled its wings a bit before it walked closer to the detective, head bobbing with each step. Another took off a some metres away, making its way back to the roof.

The thief smirked as he saw one of the birds coming up, not even letting it reach him before he jumped off the ledge and pressed the button for his glider. It soon caught the wind, and he flew off in the direction the bird had come from, and had turned to return to.