Keep a Careful Eye on the Curse's Progress
Elena's transformation into a beast continues with each passing moment. If you allow the curse to run its course, it will mean game over. Your ultimate goal is to obtain all of the master flesh in the Towers, but if you are concerned about Elena, you can head back and temporarily halt the curse's progress by giving her the flesh of servant beasts.
The gauge on the bottom left of the screen lets you keep an eye on the curse's progress.
You can temporarily reverse the curse using the flesh of servant beasts.
As the curse progresses, Elena will be unable to hide her terrible transformation...
When the gauge runs out, it's game over.