The Girl & the Machine

This short story follows Franklin, a time traveler with limited abilities: He can only travel into the past within his own lifetime. And then a girl shows up in his life. She claims to have met a future version of himself, and that the machine she invented will help him to go anywhere in the past or the future without limitations. When Heather shows Franklin the machine, she ensures him that they will change the world together and make it a better place. But Franklin can't help but feel a little ominous about it all...
PLEASE NOTE: This short story is a part of the larger collection of short stories by Beth Revis, entitled THE FUTURE COLLECTION.