Page 59 of Thorne
A silence. Then, carefully, like she's checking whether I'm serious: "A dinosaur."
"Yes."
"What kind?"
"Whatever kind you want."
No hesitation. "Purple. With yellow spots."
"Fine. The purple spotted dinosaur starts on the rock marked six."
"Okay." I can hear her looking at the paper. "He's on the six rock."
"He hops forward three rocks."
A whisper through the slot, barely sound at all: "Seven. Eight. Nine."
"Where did he land?"
"Rock nine." A pause. "Six plus three is nine."
"Now he's cold and wants to go back. He hops backward three rocks."
"Eight. Seven." A pause. "Six."
Her voice carries a small, surprised delight. "He's home."
"The river always works the same way. Forward is adding. Backward is subtracting. The rocks don't move."
"The rocks are a promise." The child's logic is absolute, carrying an unexpected weight.
I stay still on the cold floor for a moment.
"Yes, exactly." I quickly scratch eight dots on the next page, then five more below in a loose, crowded cluster. "What about this?"
"My dinosaur can't count those fast." The paper rustles as she pulls it through the gap.
"That's why we're going to clean it up." I take the paper back. Circle two of the bottom dots and draw an arrow upward. Push it through. "Eight plus two."
"Ten." The answer is instant.
"How many dots are left at the bottom?"
A pause. I hear the faint tap of her finger on the paper, counting. "Three."
"So ten plus three."
A longer pause. Not hesitation, calculation. She's watching it settle.
"Thirteen." The word is pronounced with a newfound confidence.
"Ten is the friendly rock." My finger rests on the zero-ten bridge I drew. "When things get messy, find ten first. After ten, every rock has a pattern. Eleven is ten and one, twelve is ten and two. Ten is where the river gets easy."
A long silence from the other side.
"That's why we have ten fingers." Faint scratching sounds suggest she's examining her own hands.
The back of my throat does something I don't have a name for.
