Six:

Himiko closed the diary.

The bottom half of Entry #13

had been ripped our

Entries #8-12 wasn't even in the book.

The rest was all just

___white space.___

"It's no use..."

Aside from learning about 'Nikki,'

there was almost no information

she learned about

what happened to Koutarou.

It didn't even address any new information.

Even so,

she was glad.

It means that:

Koutarou...

had trusted

her

to keep

his

secret.