Although the name Antigravity Engine had been mentioned, it was clear that, lacking too much prerequisite knowledge, neither the Rosaline of the past nor the Tertia of the present had deciphered the technology behind this Ultra-Ancient Civilization device. Seeing Ivette's interested expression, Tertia took the initiative to ask, "Would you like to go take a look?"
"After we finish looking through the things Rosaline left behind," Ivette said.
Ten minutes later, under Tertia's guidance, Ivette entered a secret chamber within the headmaster's residence. Its entrance was behind the bookshelf in the headmaster's office, requiring the appropriate authorization to open, and it led directly underground.
As she opened the door to the chamber, Tertia introduced its history. It had originally been a storage room, later converted into a secret chamber. Inside were many handwritten notes by the Legendary Mage, alchemical creations she had made herself, mysterious ancient devices, and several top-secret files.
Tertia had read all those files and studied both the alchemical creations and ancient devices. Only the Legendary Mage's notes remained beyond her understanding. The reason was simple: they had been written in Black Tide Language. Rosaline had never taught that language to anyone, so Tertia naturally had no way of understanding it.
Soon, several magic crystal lamps hanging from the dome lit up one after another, their warm orange-yellow glow dispelling the shadows in the corners.
Within the reach of that light stood a museum-like exhibition room before Ivette. Dark brown solid-wood display cases were arranged in a circular formation, every item enclosed beneath a semitransparent magical barrier.
She slowly made a circuit around the room before stopping at a display case at the very back. Inside lay an utterly unremarkable brown notebook.
Tertia walked over and deactivated the protective magic above it. Nervously, she said, "This is