Running Out of Time by Simon Fox

I can steal time. The most I can take at the moment is fifteen seconds, which is not a lot. Grandmother took almost three minutes once and she told me she's done more, but I never saw it. She says there are stories of someone who can take all the time in the world, but how can that be right?

When Alex and his father are forced to flee their home to escape a brutal government, they begin a life-threatening journey across Europe. But when they are separated before they can reach Britain, Alex finds himself alone, with only his extraordinary gift to keep him alive.

Perfect for fans of Alex Rider, Artemis Fowl, and Inception, Running out of Time is an ingenious, high-concept thriller with a twist that you won't believe.