Jennifer Murdley's Toad by Bruce Coville (Author)

Jennifer Murdley had no idea what she was getting into the day she bought the big toad from the strange man who ran Elives’ Magic Shop. The thing didn’t even start talking to her until she had it out of the shop. And once the toad did start to talk, it still kept a lot of secrets. So Jennifer didn’t find out about his strange birth… or the treasure hidden in his forehead… or the witch who was out to get him… until she and her friends were in more trouble than they had ever dreamed of!