"Fortify the paper?" Alex asked.
"Yes, that works," Helen said. "What else?"
"Is there a rune for making something resistant to fire?" he asked.
"There is," Helen said with a smile. "But it's better if you make it resistant to heat itself. What else?"
"Make the heat release outwards faster?" he said.
"Be careful," Helen said. "Too fast and you'll make the talisman explode."
'Oh,' Alex thought in his head. He then thought for a bit longer as he remembered all the talismans he had seen being used.
However, he couldn't think of anything specific aside from those few ways. He was too uneducated about talismans.
Helen saw right through him. "Okay, what if you were to make it so that the heat releases a distance away from the talisman itself?" she asked.
"Oh, you can do that?" he asked.