You and your friends take off in silver-winged motor gliders. Two hours later, your friends go down. You are the pilot in command, you the reader decide what to do next.
An adventure story featuring a dog that disappears into an abandoned, possibly haunted, house. The reader makes choices throughout the story which will determine the outcome.
The reader's decisions determine what happens when a boy who is spending the summer in Canada's Yukon Territory meets an alien that has come to Earth aboard a Soviet shuttle.