Djet's son Den became the Pharaoh after his father died. The census that his father had started was finished and it concluded that Egypt held more than one million habitants.
While visiting Paraitanion to see the construction site of a towering lighthouse, he found a injured Fennec Fox and took it as a pet. This opened up a whole new market for Fennec Foxes as each of the nobility needed to have one as well. Den also founded a Great Library in Nwit-Rst, where he collected all the ancient texts from the reigns of the ancient Pharaohs.
However, Nebuchadnezzar II thought that a young new Pharaoh represented an excellent chance to shake Egypt's hegemony status in the world. Thus in 55BC he declared war on Egypt.
The declaration never lead to any militaristic actions as Nebuchadnezzar died under suspicious circumstances after eating something that didn't suit him. His successor wasn't eager to make a move against Egypt, while the Persians were raising armies on his backyards. Soon word reached Den that the Persians had sacked Babili and that the ancient Babylonian civilization had ceased to exist.
Thus Den concentrated his efforts on building up the empire. The Great Lighthouse was finished in 50AD.
During these years a prophet was born in Niwt-Rst that preached about a new religion and savior, the christ. He then travelled to Paraitanion where to share his teachings. His teachings received many followers and soon Den himself turned to Christianity. This eventually lead to the abandoning of the old Egyptian gods as Christianity was adopted as the new state religion.
Den's royal engineer also adopted this faith and he was reportedly so busy following it that he couldn't supervise the constructions of a great observatory. Thus the foundation of the observatory was left too weak and soon after the observatory was finished, it started to lean west. The observatory was later named the Leaning Tower and it became a tourist attraction. However, the royal engineer had already lost his head for it.
The northern barbarians also adopted Christianity as their state religion, which greatly improved the relationships between these nations and Egypt.