Can time travel fix a family and a friendship? "So, one minute my ex-best friend, Izzy, and I are rummaging in the PE cupboard, looking at some hilarious prom stuff from the 1980s. The next minute, we're there. Actually there, in 1985. And that's not all - our mums are there too. But they're our age! Check out their hair! It's weird enough for Izzy, who's not really getting on with her mum at the moment. Not that I care, we're not friends any more anyway. But the thing is, my mum died in a car crash when I was four. I've always longed to get to know her, and now's my chance! Izzy says we mustn't change anything in the past, as it might mean our future selves don't even get born. But how can I not warn my mum about her fate? If there's a chance that I can save her, surely I've got to take it. Wouldn't you . . .?"