Julius and the Mona Lisa
by Barry Hunt
When the most famous painting in the world, the Mona Lisa, was stolen in 1911 from the Louvre it was called the greatest theft of the twentieth century. Details surrounding its disappearance were never properly explained - until now.
When twins, Vicky and Josh, find out the truth, they ask their uncle Julius, a time-shifter, to take them back in time to restore the original to its proper place.