About Janet Slingerland Janet Slingerland is a Capstone Press author. Books by Janet Slingerland Le chemin vers le Haut-Canada et le Bas-Canada by (author) Janet Slingerland Road to Upper and Lower Canada by (author) Janet Slingerland Road to Upper and Lower Canada by (author) Janet Slingerland The Secret Lives of Plants! by (author) Janet Slingerland illustrated by Oksana Kemarskaya consultant editor Ken Cameron