Blackwater Swamp by Bill Wallace
Ted saw her with his own two eyes! They say she can make magic. Ted is scared -- but he can't resist snaeking down to the bayou to watch the gnarled old woman and wild animals he's never even seen before! His new friend Jimmy blames the witch for the break-ins that have the town on edge. Ted doesn't know who to believe. Jimmy and his swaggering cousin Bubba are pretty scary themselves. Ted knows the answers lie in the dark and dangerous swamp. But nothing can prepare them for the terror to come...