A few dozen stones have been blazing a trail of thanks at Superior High School this month.
"I received one in my mailbox!" wrote world literature teacher Minden Hultstrom in an email. "I do not know from whom I received it, but I passed it on (in person) to Rachael Holden-Kaufman."
English teacher Andy Wolfe reported the rocks have made a splash "at least up here in my little corner of the world."
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