. "Earth and Sky"@en . . . . . "Earth and Sky is an interactive fiction trilogy written and produced by Paul O'Brian about the adventures of a brother and sister who gain superpowers while searching for their lost parents. Games in the series have won awards in the annual Interactive Fiction Competition and received an XYZZY Award.The first game begins a month after the disappearance of two scientists at the local university, Clair and Scott Colborn."@en . .