Old Yeller Series by Fred Gipson

At first, Travis couldn't stand the sight of Old Yeller.The stray dog was ugly, and a thieving rascal, too. But he sure was clever, and a smart dog could be a big help on the wild Texas frontier, especially with Papa away on a long cattle drive up to Abilene.Strong and courageous, Old Yeller proved that he could protect Travis's family from any sort of danger. But can Travis do the same for Old Yeller?

"What Mr. Gipson has written is the story of a grim situation, a desperate chase, filled with brutality and heroism, yet he has written it with a sense of young wonder and even, at time, with humor." –New York Times Book ReviewThe thrilling story of the son of Old YellerIn this sequel to Old Yeller, Travis and his younger brother Arliss are kidnapped by a band of Apaches, and Savage Sam, the son of the beloved yellow dog, Old Yeller, leads a frantic chase to bring them back.