Where the Red Fern Grows
What was used of Grandpa's as a grooming tool by Billy?
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?
From the text:
Knowing I had no oils, I got some butter from our grocery box. With the homemade butter and Grandpa's hair set, I brushed her until she shone. All the time I was grooming her, she tried to lick the butter from my hands.
Where the Red Fern Grows