Bionicle Legends is the third book series based in the Bionicle universe. It had ended in 2008 and was succeeded by a new, final 3-book series, titled Bionicle Super Chapter Books. Bionicle Legends covered the events that occurred in the storyline's 2006–2008 story arc. It follows the Bionicle Adventures series; but as Adventures is almost exclusively told in flashbacks, the events preceding those in Legends are told in the first book series, Bionicle Chronicles.
In Bionicle Legends, the Great Spirit Mata Nui is dying, and the universe will die with him if nothing is done. A new group of Toa must find the Mask of Life that can save him before it is too late, but other, more sinister groups also desire such a powerful mask for their own purposes.
The 2006 arc of Legends was adapted into the Bionicle Heroes video game.
Despite not being named as such on the titles, the 2009 book, Raid on Vulcanus was labeled as being part of Bionicle Legends on some websites.
The main events of the Legends story arc are told in:
The following sources provide background information and tell side stories taking place during Bionicle Legends:
The reconstruction of Metru Nui is underway as the Turaga call a meeting with the Toa Nuva and Toa Takanuva. Turaga Dume and Nuju reveal their discovery. By studying the stars, they have found the Great Spirit has fallen from his coma-like state and is dying. After his death, the universe will die along with it in three days. His only chance of survival is if the Toa Nuva recover the legendary Kanohi Ignika, the Mask of Life, to save him. Dume leads the Toa Nuva underground to Toa Canisters and sends them off to the island of Voya Nui while Toa Takanuva stays behind to guard the metropolis.
On Voya Nui, the Piraka, Zaktan, Avak, Thok, Reidak, Vezok, and Hakann, arrive and masquerade as Toa. Despite their claims, it is their frightening appearance and demeanor which primarily makes the Matoran natives fall into the Piraka's plot. Thus, the Matoran survivalists are convinced, and begin the construction of the Piraka's fortress, the Stronghold, as well as temples and statues in their honor. They are also used to dig trenches for "lava-farming" out of Mount Valmai to search for the Ignika. This makes six Matoran suspicious of their claims, and form the "Voya Nui Resistance Team". They watch the Piraka closely and take place in the theft of a mysterious artifact they created, a Zamor Launcher, ultimately believing they will use the weapon against them.