Ye Nai thought that the soldier might be easier to coax into talking, and if he absolutely refused, then the interrogation could continue with the Guard Captain.
After a few minutes of hassle and intimidation, the soldier indeed confessed everything, and Ye Nai smoothly obtained the locations corresponding to the five Transmission Platforms.
One led directly to the Otherworld's old capital.
One led to the North City Camp outside the city.
One led to the Wizard Institute.
One led to the east border where the Second Prince was stationed.
The last one led to the Prince's territory; according to the soldier, the Prince and his family used to reside there until the King grew old, requiring the Prince to fulfill his inheritance responsibilities by residing in the Royal Palace, although in summer, when the weather was hot, the family would return to cool off.
The soldier, however, was unclear about any relation between this North City Camp and the logistics camp.