Despite their claimed innocence (I mean, did anybody really believe them?), Imogen and Tay did in fact throw the sandballs at Izzy and Ellie. (Now, was it Imogen's idea, or Tay's idea?) This of course meant war, and so Izzy and Ellie plotted their revenge, in the form of buckets borrowed from a couple of younger kids at the beach (it cost them a large ice cream each, but was worth it). Then it was just a case of waiting for the right moment.
It was Izzy who noticed her brother giggling with the mischievous fox as they headed behind the sandbank, no doubt to form more sandballs. She nudged Ellie and pointed her head to where the two had hidden; their tails were the only part visible when Ellie looked over but it was obviously them - the sound of stifled giggles the other giveaway. Quietly, the two of them crept over with their buckets full of water.
"one... two..." Izzy whispered.
"THREE!" they both shouted, tipping the water over the unsuspecting duo.
Izzy laughed as Tay overreacted to the deluge of water pouring over his head. "I'm drowning!" he cried out.
"Thought you could hide behind this sandhill?" Ellie smirked as her bucket of water emptied over Imogen's head.
"We're innocent!" the fox claimed, the pile of fresh sandballs in front of her proving that to be a lie. Izzy and Ellie ran off laughing as the now soaking wet pair already started plotting. That particular battle may have been lost, but the war was only just beginning...