Adam Silvera books in order
9 books in the catalogue, about 65 hours of reading in all; the shortest takes 6 hours and the longest 9 hours.
3 series and 4 standalone books in the catalogue.
Death-Cast
4 books
They Both Die at the End 7.0 h 
The First to Die at the End 7.6 h The Survivor Wants to Die at the End length not known
No One Knows Who Dies at the End length not known
