Once Upon A Summer

Twelve year old Olivia is ecstatic that the summer vacation has finally arrived, but her hopes for excitement-filled days are dashed when she discovers that her annoying cousin, Simon, will be staying with them. Everything changes when Olivia and her best friend Charlotte camp overnight on Meaver Island - the historic estate that has been in Olivia's family for generations. The two are disturbed by a dark figure hiding in the bushes. This, followed by a strangely padlocked door and a spate of missing ponies can only mean one thing - the girls have uncovered a mystery. The question is, will the girls be able to uncover the truth before Olivia leaves for boarding school? Will their inquiries lead them into danger? Or will pesky Simon foil their plans and land them all in trouble?