Can not finish boss part of the atlas three

I went and finish all bosses on map level 79,80,81 and 82 but Im missing 2 points.

I suspect that problem was when I killed boss I got it to drop but boss death animation killed me and I was unable to collect the book that dropped.

Is there a way of getting a book?

I tried to do it again but nothing happened no drop.

The points are no longer acquired in the way they were during 0.2.

It is now

2 points from Arbiter

2 points from a 6 mod map at lvl 79+

2 points from a 6 mod map at lvl 80+

2 points from a 6 mod map at lvl 79+ in a Anomaly Map Boss node

2 points from a 6 mod map at lvl 79+ Citadel node

I finished

Arbiter
6 mod map at lvl 79+
6 mod map at lvl 80+
6 mod map at lvl 79+ Citadel node

I do not know what you mean by this

6 mod map at lvl 79+ in a Anomaly Map Boss node
is that corrupted or clensed?

The Anomaly Map Boss node is the maps that are locked until you complete certain requirements found in the maps around that locked node. Its the nodes that have the Red Boss picture, in game its called Deadly Map Boss.

I finished all of those challenges and still 8/10

I suspect that problem was when I killed 79+ or 80+ boss I got it to drop but boss death animation killed me and I was unable to collect the book that dropped.