Running Into Time - Cedar Sanderson - Bog

Time travel isn't possible. Is it?
If it was feasible, how would it work?
And what price would the world's powers pay to have the inventor under their control? Garry never asked to be assigned to protect the girl he really liked in his classes. He just wanted time to get to know her better. Pol never minded being called a mad scientist. He had good reasons for being mad. His top priority was protecting his sister, no matter the cost. Both men were about to run headlong into a surreal reality, where the only answer might be held by a little white mouse cupped gently in a woman's hands...