Ren then created a wood clone and sent him towards the basement of hokhage and he found an underground connection of caves .
Here Ren and his wood clone can communicate in real time so what clone sees can be communicated to Ren.
After he found the caves Ren went into one of the chambers and saw lot of root ninjas there with there anbu type outfit with everyone with a white plain mask and then he tried to listen their conversations but nobody was even speaking anything. They where sitting there with no emotions .
Finally an anbu came and called a root ninja and led him to a room . I followed them and to my surprise within that room was danzo sitting on a black throne.
I was able to clearly feel his chakra which was at kage level and according to my knowledge based on the people's chakra I have sensed he was second,first being hiruzen and third being tsunade.
Danzo then gave a root ninja and assain mission of some random ninja of hidden stone.the the root ninja just bowed his head and went out of the underground cave in an unsuspeced tunnel which was near hokage mountain.
Under the hokage mountain was the anbu hwmeasquaters but the exit of root headquaters was far from it.
Then danzo called an root ninja again and root ninja came into the room.danzo then asked him "why where you chased out by tsunade"to my surprise he was one of the spy within senju compound.who tsunade had kicked out of the clan .
Root ninja:"I have no idea lord danzo ,on that day suddenly tsunade came and kicked us out .i ofcourse refused but she threatened to kill me.so having no choice i returned"
Danzo shimura:"so you came back ,hahahaha, then there is also no use for you to stay here"
Then danzo used body flicker jutsu and appeared behind the root ninja and then used his advanced wind Jutsu.
Wind release:vaccum blade
Then there was a sound,
...
Thud
...
It was the sound of root ninja being beheaded and his head falling down.
He then ordered some of the root ninja's to clean up the body and to inform some top root ninja's to come and meet him.
After some time the ninja's came in and this time danzo ordered them to spy on senju compound .listening this the root ninja's bowed and went away .then danzo also left the root hideout.
Then Ren dispered the clone and he got his chakra back .he was sure that danzo becoming this overbearing within the village was due to hiruzen. Although hiruzen was a loyal leader but he was definetly incompetent.
Ren know lot of the things he will do .which will cause konoha lot of problem .like uchia Massacre,ineffective handling of orochimaru, Neglecting Naruto when he was child,listening to danzo and his friends the elders instead of taking his own decisions,and also his indecisivness .
Well hiruzen became hokage on my great uncle's order .i don't know why he choosed him.in thought i know why when second hokhage was chased by the kinkau and ginkaku elite force of hidden cloud, the second hokage asked who will stay behind to stall them and hiruzen was the one who stepped up .then second hokage said" no you can't stop them I was just testing you all ,if I die here hiruzen will the next kokage now head back to village". This was how third hokage deceided.
Now Ren was very happy with his jutsu mayfly"tree travel" but then came a thought to him.of how danzo will also be able to use this jutsu when he gains hashirama cells to gain a arm and also fuse uchiha sharigans in his armfor hisanagi and hisanami.this time Ren decided to definetly stop it.
Well if we think about now Ren was not worried about root spies as they will never be able to see through the seals protecting the senju compound. As they where made by mito uzumaki,wife of hashirama senju and my grandma . Who was considered as the best fuinjutsu grandmaster.
Now then it was already night and Ren decided to have a hot shower . After shower Ren went to have food and tsunade was also there having lunch . Ren after some contemplation decided to tell tsunade about danzo's spies .hearing this tsunade was angry and also concerned about me ,then told me to not to do anything like this again.
She then said i will speak with sensei tmmrw you go and sleep.
Then again like a normal day i gave some nature energy to tsunade and then to myself and i went to bed. Whereas tsunade was angry and decided to have nice chat with her sensei Tommorow morning...