[A few hours after Princess Neoma and Lady Juri left…]
"SIR KINSLEY, just where in the world did Princess Neoma and Juri have gone to?"
Geoffrey Kinsley flinched after being confronted by Madam Hammock.
[Ah, busted.]
As Princess Neoma instructed him to do, he guarded the royal carriage as if Her Royal Highness and Lady Juri were there. He made up as an excuse as to why the two needed to stay in the carriage as they crossed the portal leading to the Golden Field.
Then, when they arrived at the villa, he purposely asked everyone to let the royal carriage enter first. After that, he had no choice but to create an illusion of Prince Nero and Lady Juri. It wasn't perfect, but his skill was enough to fool the servants of the villa who weren't high-level Mana users.
[But of course, a sage like Madam Hammock would notice.]