The book you show to travel, but which is carefully scrutinized before the world allows you in.

It divides the world's map into invisible segments, and throws your internal clock out of sync when you cross it. Solve the riddle → In an endless circle, it presents unknown twins, while you, with eager eyes, search for your own reflection. Solve the riddle → I can be worth a lot on one side of a border and less on the other, even though I look the same. What am I? Solve the riddle → What gets filled every night, no matter how carefully you emptied it yesterday? Its bottom is never in sight, and new items land there constantly. Solve the riddle → What guides your day, is full of meetings but has no opinion of its own? Its pages are filled with promises. Solve the riddle →