Chomp!
Wasting no time after she killed the unfortunate mountain rabbit, Scaly hungrily chomped down on the mountain rabbit. Consuming the entire rabbit in the span of a few short seconds. Far exceeding her previous eating speed, something that could be attributed to her hunger and increased size.
Even then, Scaly was far from satisfied with just a single mountain rabbit, as she soon began to hungrily scan her surroundings for any other monster that might be wandering around the relatively empty mountainous terrain.
Unfortunately, as she looked around, she discovered that there was not only no monsters around for her to eat, but the massive body of the heavenly lake serpent that she had been happily chomping into before her evolution and unfortunate burial underground, had completely disappeared. Not even leaving any bones behind.
Did it get eaten in its entirety or did those heavenly lake serpents perhaps take it away after they appeared?