The 4th book in this madcap series for 6+ readers, which shows growing momentum on strong sales.
But luckily he\'s got one of his brilliant plans up his sleeve, and he\'s sure to have the final chuckle....
There\'s a girl in Barry\'s class who\'s getting more laughs than him.
The 4th book in this madcap series for 6+ readers, which shows growing momentum on strong sales