The attack happened two days later. Prophecies didn't lie about it.
The humans entered the Bee Empire's territory with almost no resistance. Knowing that there was no stopping them, Ambrosia ordered her daughters and granddaughters to evacuate from the most likely path humans will take.
Those who couldn't evacuate from their hives and camps hid and waited, but humans walked past them. If they suspected that something was amiss, the reports from scouts didn't show it.
When they entered the sight of Hive Supremo, the hive was fully ready for a fight.
Bees were already evacuated from the forges and other utility buildings at the foot of the Hive Supremo's pillar mountain. All the bees who usually buzzed around, doing various jobs, or hid inside.
The bees who were too precious to the Empire or unable to fight had already evacuated to the nearest hives like Hive Hornet's Nest. By Ambrosia's order, this included Science and Culture Advisers.
