What is the summary of After the First Death by Robert Cormier?

Robert Cormier's After the First Death is a young adult suspense novel written in 1979 that revolves around a school bus that is hijacked by ruthless terrorists. The bus is headed to summer camp and is being driven by a young high school student named Kate.
The four hijacking terrorists, whose names are Miro, Antibbe, Artkin, and Stroll, ruthlessly announce that they kill a child for each time the police attempt to intervene. When Miro, one of the youngest of the terrorists is told to murder Kate, he hesitates. Meanwhile, the children are given candy laced with a sleeping drug in order to keep them calm and quiet. One of the children accidentally overdoses from this drug and dies, and the killing of Kate is postponed so she is able to help take care of the now-panicking children.
Kate, thinking like the star of an action film, decides to attempt to drive the bus off a bridge. Her plan is unsuccessful due to the bus stalling, and Kate begins to panic.
Once the terrorists' leader Sedeete is kidnapped, Ben, a young boy whose father is the general of an anti-terrorism squad, is sent to provide proof that the Sedeete is alive. Ben is tortured by the terrorists. Miro and Kate escape the bus, and Miro eventually kills Kate when he thinks she is attempting to deceive him.
Eventually, Ben is ashamed and scarred for the ordeal and commits suicide. His father goes insane and imagines talking to him in an insane asylum.