And he had the same crew.
The "Albatross" left X Island in the first week of April.

During this aerial passage Robur did not want to be seen from the earth, and he came along almost always above the clouds.

When he arrived over North America he descended in a desolate spot in the Far West.

There the engineer, keeping a profound incognito, learnt with considerable pleasure that the Weldon Institute was about to begin its experiments, and that the "Go-Ahead," with Uncle Prudent and Phil Evans, was going to start from Philadelphia on the 29th of April.
Here was a chance for Robur and his crew to gratify their longing for revenge.

Here was a chance for inflicting on their foes a terrible vengeance, which in the "Go-Ahead" they could not escape.