Overview
Closer (sometimes known simply as Tunnels 4) is the fourth book in the Tunnels series, written by Roderick Gordon and Brian Williams. Released in the United Kingdom by Chicken House on 3 May 2010, its publication in the United States by Scholastic Inc. followed on 1 February 2011.
Plot summary
Part 1: Revelations
In the world with its own sun in the center of the Earth, the Rebecca twins dive into a pool in order to escape an explosion set off by Will and Elliott in Freefall, and eventually are able to survive by breathing air they find trapped in the roof of a mine shaft that, after being flooded, formed the pool they were camped at. Rebecca Two tends to her twin sister`s bullet wound inflicted by Will during the ambush. The Rebeccas spot in the distance a modern metropolis, with helicopters and other vehicles, including cars resembling Volkswagens. Rebecca Two sees a Limiter flare, and then signals back by blowing up a gas tank at the end of the mine shaft. She then continues to carry her dying sister toward the city. The Rebeccas find the city, and realise it is well maintained and populated. They, being potentially hostile outsiders, frighten a small number of people, and that results in the arrival of a squad of the local army. The people of the city are from an expeditionary force from Nazi Germany that arrived during World War II. The Limiter forces arrive shortly, and a short staredown occurs, and after a Limiter medic begins to operate on Rebecca One, Rebecca Two and the Limiter General begin to talk about their identity to the authorities of the city. It turns out that during the Second World War, the Styx were allies of the Third Reich. The officer of the squad informs the other two that they are in a city called ‘New Germania’. As Rebecca One recovers in a New Germanian hospital, the officer takes Rebecca Two and the Limiter General to meet the Chancellor of New Germania, whom the Styx intimidate into helping them find Will and his group, with plans to kill him and retrieve the Dominion virus.
From Wikipedia (CC BY-SA 4.0).