‘Guys!’ she says, panting. ‘We’re being spied on!’ ‘What?’ says Mika. ‘But we’re the spies!’ ‘Detectives,’ Alex corrects. Billie turns around to look at the drink taps. Edwina has disappeared. ‘Who’s spying on us?’ asks Jack. Billie lowers her voice. ‘It’s Edwina from Olivia’s class. She lives across the road and has been watching us all this time!’ Mika gasps. ‘We have to be careful!’ Alex says. ‘What if she suspects what we’re doing?’ Billie draws her friends in closer. ‘I think she’s already suspicious. When I told her the story about Mika’s missing necklace, she didn’t seem like she believed me at all!’ ‘You’d better teach us that language, Billie,’ Jack says. ‘So we can talk in front of other people without them understanding.’ ‘What language?’ Mika asks. ‘Pig Latin,’ says Billie. ‘It’s a made-up language my dad taught me. He said he and his friends used to use it when they were our age.’ ‘How do you speak it?’ asks Jack.
