Paul Zindel

In 1945, having joined his father at Los Alamos, where he and other scientists are working on a secret project to end World War II, thirteen-year-old Stephen becomes caught in a web of secrecy and intrigue.

Discovering that their beloved former teacher Miss Applebaum is terminally ill, fifteen-year-old Henry and his friend Zelda accompany her on her excursions to the colorful parts of New York City and join her in confronting death with quiet courage.

Fifteen-year-old Loch and his younger sister join their father on a scientific expedition searching for enormous prehistoric creatures sighted in a Vermont lake, but it soon becomes obvious that the expedition's leaders aren't interested in preserving the creatures.

A fifteen-year-old scientific whiz who feels like a clod around boys falls in love for the first time with an auto mechanic whose picture she has seen.