What is the summary of A cow call boy?

this story is About a Boy named josh mahon and he had this bulkin who got him into a lot of trouble so his mother decided to get rid of the calf and a shopkeeper offers to buy him but he treated Boy(Boy was the name of the bulkin) unfairly.josh comes up with this plan to get Boy back and he askes his schoolmates to protest with him for the villagers not to buy from the shopkeeper until he gets back boy and the shopkeeper eventually hands over Boy.