Clues?
There are far too many.
The Black Gem Cat immediately recalled a series — for example, the 'seed' that merged into the original body was the trick of that little crow Gan Ning; then, Thomas, who once kidnapped it, was also a little crow and took a significant amount of its flesh, most likely offering it to Montreya; furthermore, Montreya was not only its magic language professor, but it had also worked as an assistant in his laboratory—
Wait!
Laboratory?
The two Big Wizards keenly noticed the Black Gem Cat's momentary change in aura and held their breath in unison.
"The key!"
The Black Gem Cat raised a small paw, revealing its tender pink pad, looking excited: "—Some time ago, Old Crow, ahem, I mean, Professor Montreya gave my original body a key! It's for his Bloodline Research Laboratory!"
Before the words were finished.
