A book no time-traveler can do without!
Have you ever had the embarrassing experience of encountering a famous space
explorer on a lost planet or perhaps being interrogated by a super villain in
his or her secret orbital lair and not realizing that it's their birthday?
We've all had this happen…you're traveling through time and stop for a cocktail.
Only later do you realize that if you'd traveled one day farther in either
direction you would have been present at an amazing discovery or, more
important, missed a really horrible disaster. Awkward! With Captain Z-Ro's
Indispensable Parallel Universe Book of Days, you no longer need to