"Jerrold has done a whole lot toward solving the problem of aërial navigation," said Matt. "It was his work that made the Hawk as good as it is. You see, Brady used to work for Jerrold, and he stole most of his ideas for the Hawk from the Eagle."
"A regular skull-and-cross-bones pirate, that Brady," muttered Ferral. "I hope we can lay him by the heels and cut short his lawless career."
While the Eagle was being made ready, Harris and Carl arrived together on the scene of operations. Harris wore civilian clothes and looked like anything but a police officer.
"Well," said he, rubbing his hands, "this reminds me of that other time, Matt, when Carl and Jerrold and I went chasing the Hawk in order to get hold of you. I hope we'll have better success this trip than we had before."
"Ve vill," declared Carl. "Matt iss mit us, now, und dot means dot ve vill haf more luck. He iss der lucky poy, all der dime."
"I don't know about that, Carl," laughed Matt a little grimly, "my luck seems to have taken a turn."
"Did you look after Miss Brady, Carl?" queried Ferral.
"Vell, I bed you. She hat a good meal, und den I pud her apoardt a drain for der city. She vanted me to say to you dot she vas mooch opliged."
"We're under more obligations to her than she is to us," went on Ferral. "Kind of strange, it strikes me, that she should be willing to give us a tip about her father."
"You wouldn't think it strange, Dick," said Matt warmly, "if you knew the girl better. She knows that her father, if he is not captured, will go on and on in crime until he does something that will earn him more than a mere prison sentence. She wants him captured, and the Hawk taken away from him. That was her plan when Brady captured me and held me a prisoner in Willoughby's swamp. But she wouldn't leave her father when I came away. She considered it her duty to stay with him up to the very last moment. It's a good thing for her that her father went away like he did. Now Helen can look out for herself, and do it with a clear conscience."