Diary (Shades of Mort'ton)

The item is just called "Diary", but its title is Diary of Herbi Flax.

The book is found on the shelves in a ruined house towards the south-west side of Mort'ton. It describes some experiments trying to find a cure for the strange malady affecting the people of Mort'ton and describes how to make Serum 207 and Serum 208.

It can also be found on the shelves in your house.