1. Go to southern Umbala (um_fild04 262, 252) and talk to the Botanist. He muses over the stolen book and introduces himself as Jonathan Greengold, a researcher in the field of botany and plant cultivation.
2. Jonathan begs you to let him keep the book as it's vital to his research. After a bit of chatting, he asks you to identify five different plant species in his place.
You must find Rare Plants and kill them to obtain Umbala Fields.scattered around
4. Once you get five different plant types, talk to Jonathan again and he will lend you the book.
5. Jonathan will forward you to his wife, who suggests that there may be Kafra positions in Western Division of the Kafra Corp. in Comodo.
6. You can now start the Kafra Band Quest.