Books like The Valley of the Lost
Emily Rodda
The Valley of the Lost is 129 pages, about 2 hours 22 minutes at 250 words a minute.
12 books to read next
How long each takes
Sabriel 6.5 h 
Lirael Daughter of the Clayr 9.5 h 
Pawn of Prophecy 5.0 h 
Avatar 1.7 h 
The Black Cauldron 4.1 h 
A Wizard of Earthsea 3.8 h 
Mister Monday 6.6 h 
The Outcasts 8.1 h 
The Rithmatist 8.2 h 
A New Beginning 8.6 h 
Crooked Kingdom 10.7 h 
Seeds of Rebellion 9.7 h Bar height shows length. Estimated at 250 words a minute.