"There is no such thing as luck.  There is only adequate or inadequate preparation to cope with a statistical universe." —Robert A. Heinlein, from Time Enough for Love. Be Prepared – Or Die! Bill Lermer travels with his father, stepmother and stepsister to colonize a Jovian moon in the process of being terraformed.  Out here, self-reliance is the key to survival—and Bill finds that his Boy Scout motto isn't merely a pretty saying.  It's a necessary rule for survival! This is it:  what we think is the best of the classic Robert Heinlein adventure novels that influenced a generation of engineers and space scientists and still set the heart racing and the mind afire!  Download the comprehensive Teacher’s Guide here.