Books like Green Futures of Tycho
William Sleator
Green Futures of Tycho is 133 pages, about 2 hours 26 minutes at 250 words a minute.
12 books to read next
How long each takes
Before the Coffee Gets Cold 4.4 h 
The Invisible Man 3.1 h 
Kindred 5.3 h 
This Is How You Lose the Time War 3.8 h 
Station Eleven 6.5 h 
One Last Stop 7.9 h 
The End of Eternity 4.7 h 
Matahari 7.3 h 
Timeline 9.4 h 
When the Sleeper Awakes 5.1 h 
Pebble in the Sky 4.1 h 
The Door Into Summer 3.5 h Bar height shows length. Estimated at 250 words a minute.