Did i just raise a flag?

As the cold blizzard continued to rampage about, John, Serena, Ariel and Master entered a strange cave. Everyone had a blank expression on their face, as they wondered, what was happening 

"U-Um, master... D-Didn't you say something about vacation and training?" Asked john with a worried expression 

There were strange paterns and runes in the cave walls, and he felt an immense amount of magic power coming from inside. 

Before master could answer, a familiar voice came from the inside of the cave 

"This is part of the training" 

Serena and Ariel freaked out when they heard the voice 

"W-We won't go easy on you just because you're a ghost!" Said Ariel 

"Saint-Class Fire magic..." Added Serena as her spell started to activate 

John who heard them get in battle mode, nearly panicked. 

"Wait" He said as he stared at the darkness within