After the deal was made, Jacob was given a guest room within the Alchemy Guild to live. While in truth, it was done so he couldn't run away until Sofie's arrived, and Curtis was in charge of making sure of it.
However, what both Sofie and Curtis didn't know was Jacob appreciated this lodging and didn't mind resting for three days. He was tired of the ocean and continuously avoiding one after another danger.
Nevertheless, as the saying goes, there was no rest for the wicked.
Both Curtis and Elf were quite eager to get their end of the deal, but Jacob delayed them by telling them that he would pay them once his deal with Sofie has fulfilled, and they had no other choice but to wait.
Thereafter, Jacob made sure there wasn't any monitoring or listening device planted in his lodging and then started to focus on the water magic.