Miller's Island Mysteries 3 The Case of the Magnetic Rocket Fuel

Their last time-travelling mishap still fresh in their minds, Grace and Jack are on edge about what might happen next. Grace's memories of her solo trip to the future are never far away. When the future begins to seep out into the present, they must stick to the rules or risk the consequences. They set themselves the task of finding out more about the mysterious ink, ending up in the past in a mysterious science lab. Could their new discovery also shed some light onto their mysterious friends at 21BUT22?Miller's Island Mysteries Series:Miller's Island Mysteries 1 The Case of the Toxic RiverMiller's Island Mysteries 2 The Case of the Mysterious FutureMiller's Island Mysteries 3 The Case of the Magnetic Rocket FuelMiller's Island Mysteries 4 The Case of the Mirrored CatMiller's Island Mysteries 5 The Case of the Treacherous TunnelAnd follow Grace and Jack to high school and beyond in the Miller's Island series:White Lies and Other Random Events