These seeds . . .

Using the grade A token I acquired, I summoned another Builder. Daedalus finally had an assistant.

While he was busy with the construction in my territory, he could instruct the other builder on how to construct the dam.

Besides, Daedalus's presence wasn't as needed in the dam compared to my territory. A once a day hour-long visit and inspection should be enough supervision. Construction in my territory was the top priority.

After I summoned twenty workers or so, they started constructing that dam. 

Now that the construction issues were out of the way, I faced Ulysses and handed him the [Eternal Sand]. "Can you replicate this?"

Ulysses stared at the sand I handed to him without a word for an entire minute. It seemed like he was trying to come up with a way to create something similar to the sand.

After a while, he suddenly bolted upright.