extinct animals

As Akira and his fellow survivors struggle to evade the dangerous animals on the island, they discover that they have a human killer in their midst as well, one that seems to have it in for Akira.

"Yarai is determined to do whatever it takes to save the live of his dear teacher, even if it means taking the life of his friend. But can Yarai actually go through with it? With Yarai and Sengoku facing each other in battle to the death, it seems like Mami's dreaded vision is actually coming true. However, they may have a bigger problem on their hands, as it appears that the work of uncovering the traps surrounding the mysterious tower may have awoken a new and fearsome beast from its deep slumber"--Back cover.

"Kokono?'s plan comes to fruition, allowing him and Ohmori to evade execution while also creating a diversion for Sengoku and his friends to escape the clutches of Nishikiori. As they make their way back to the others, Yarai reaches Nishikiori's camp where he comes to face the cold, hard truth about Kurusu-sensei's condition. But seeing a chance to turn things in his favor, Nishikiori makes a deal with Yarai. Will Yarai go through with Nishikiori's dastardly request for the chance to save the life of his teacher?"--Back cover.

Evading various pitfalls, Sengoku and crew reach the deepest levels of the pyramid, where they make a discovery that brings them closer to understanding the mysterious island on which they are stranded. Meanwhile, Kokono? and Ohmori plot an escape from execution.

When a plan to infiltrate the mad doctor Nishikiori's camp backfires, Sengoku and his crew are sent deep inside the mysterious pyramid, where they make new discoveries, encountering more questions than answers about the strange island they are on.

Yarai and friends investigate a lighthouse, finding a corpse with a key in its mouth, and encounter two dangerous men.

Three different kinds of extinct creatures are after the school kids and it is up to Akira to figure out their weaknesses.

Finally reaching the strange structure towering over the jungle, Akira and the others are upset to realize that Eiken and his group are nowhere to be found, until Mariya makes an interesting discovery that explains all the disappearances.

Akira and his group find themselves fighting for their lives when they encounter prehistory's version of King Kong--Gigantopithecus. Meanwhile, Eiken finds a man-made relic that may explain how they landed in this situation to begin with.

Akira and his classmates, flying home from a field trip, crash on a strange island where he and fellow survivors struggle to evade the huge, supposedly extinct, beasts that want to kill them.