491 Entering with the Opportunity Arising

At that moment, in the lava lakeat the center of the second level of the God Advent Tower, the flock of strange birds had just finished another round of hunting.

They piled the prey they had caught together. Tens of strange birds overlapped their wings and formed a circle. Once again, they began their odd ritual.

And at that moment, their leader appeared.

It flew down from its "throne" on the cliff and circled in the air a few times before retracting its wings and landing in the middle of the flock of strange birds as it enjoyed the worship of its lackeys.

It did not stand on ceremony as it extracted the dead preys' heart's blood, filling up a bone cup. Just as it was about to pick up the bone cup to fly back to its nest, it suddenly felt something amiss.

The sticky hearts' blood in the bone cup gently rippled forming wave after wave of concentric circles. The ground… was slightly trembling!

What was happening?