Adequate preparations were made for the fight which could be launched at any time.
On the word of command from the Old Man of Heaven Prison, numerous warriors were teleported to the Black Tooth Island which was close to the Cliff of Purgatory. Passing the Cliff of Purgatory was the Heaven Martial Kingdom. The warriors could make their landing there.
As a matter of fact, the God-down Island was closer to the Heaven Martial Kingdom. But Madam Yan was aware that Lu Li had just taken the island over so he must have his hands full. Therefore, Madam Yan didn't book their Teleportation Formation.
The Black Tooth Island had many battleships ready. As soon as the warriors were teleported to the Black Tooth Island, they boarded the ships and waited.