Page "Bionicle Legends" Paragraph 92

Later, an Av-Matoran who looked up to the Toa, named Solek, approached Kopaka and gave him part of an object called a Keystone.

It was a tablet detailing how to awaken Mata Nui from his endless slumber, but it had been broken into six pieces.

According to Solek, the Makuta held two pieces ( one held by Kirop ), and the locations of the other three were unknown.

Kopaka, understanding all that these Matoran have been through, spoke kindly to him and gave him inspiration for the battle to come, using how Takua became a Toa as an example.

It was then that Kopaka learned that Solek knew Takua.