A short alarm by no means added to the comfort of their condition: on the first of this month four large boats, three of which rowed eighteen oars, and the fourth not less than twelve or fourteen, bore down upon the ship, apparently with hostile intentions.
When they approached within about a mile they lay to, as if to consult with each other, and then continued to row and sail after the Alexander.
Lieutenant Shortland hoisted English colours, which one of the boats answered by hoisting Dutch, and another Portugueze colours.

They continued in chase till five in the afternoon, and it was imagined that their design was to board and seize the ship in the night.

During the pursuit the little strength that could be raised was put in motion, all were stationed at their quarters, and the carronades and great guns put in order.

When these preparations were made, Lieutenant Shortland determined to show his own resolution, and to try that of his assailants, by firing a shot in a direct line over them.

This was done accordingly, and fully answered the intention, for they immediately desisted from the pursuit, and made hastily for the shore.
Had the Alexander been at this time a very few days sail more distant from Batavia, she must inevitably have been lost, not from any stress of weather, or danger of coasts or shoals, but merely from inability to conduct her into port, as every man on board must have been totally disabled.
17 November 1788 On the 17th of November only one man was fit for work, besides the officers; a very little longer continuance would have reduced her to the condition of floating at the mercy of winds and waves, without any possibility of assisting, impeding, or directing her course.