"It could be something left behind by the ancestors," Headmistress Ana said excitedly.
"That is possible," Raven murmured. "However, doesn't this design look incomplete?" he asked Mana. "From all the rune magic we have learnt, there should be two more points on this symbol to fully bring out its power, isn't it?"
Headmistress Ana's eyes widened in shock. "You're right!" she cried. "All this time, we have simply accepted this as the symbol of the ancestors because all the books left by the ancestors had this design on the cover – but if we think of it as a magical rune instead, it does appear to be incomplete unless we add two more points at the top and the bottom!"
"That would make thirteen dots," Mana murmured, remembering how, in the previous world, thirteen was generally considered to be an unlucky number. She wasn't sure whether there were any similar superstitions here or not.
