How to Invent Everything : A Survival Guide for the Stranded Time Traveler
North Ryan
Riverhead Books
What would you do if a time machine hurled you thousands of years into the past. . . and then broke? How would you survive? Could you improve on humanity's original timeline? And how hard would it be to domesticate a giant wombat? With this book as your guide, you'll survive--and thrive--in any period in Earth's history.