Flying High

When Mel, Lola, and Reuben are sent to the medievals where there is a kid called Stephen trying to get to Jeresalim with thousands of other kids, a De Winter man comes and offers them a "free ride to Jeresalim" buit they are actually planning to sell them as slaves. Then, against the Agency's wishes, Mel, Lola and Reuben dive into the future where bad-boy Brice, Mel's fallen-angel worst enemy is posing as good guy dave to protect his little brother, Dom, who has re-invented the time machine. Only,Dom wants to send his evil rellies (the de winters) into the future. Its awesome. I read it like five times and its still amazing!