The Advanced Virtual Academy Twilight High School (Twilight High School) provides Houston Independent School District (HISD) high school students with opportunities to earn credits toward graduation and targets students who are at risk of not completing courses required to earn a high school diploma. This 2013-2014 Twilight High School program report describes program outcomes in the fourth year of program implementation. It describes characteristics of program participants, participant assessment of the program, and academic outcomes for the 2013-2014 school year in comparison to the 2012-2013 school year. The Twilight High School program began operations in November 2010.