This study inquires into the author's shifting ‘self’ as a researcher/teacher educator in teacher professional development. The author uses an autoethnographic inquiry, and presents vignettes of the self/researcher/teacher educator embedded in the messiness and complexity of lived experiences. This autoethnographic inquiry represents her attempts to make sense of these experiences. Central to the inquiry is an examination of the roles played by serendipity and by writing itself in the processes of sense- and self-making.