Beloved author Rachel Vail's newest series, about an earnest young dinosaur who tries as hard as he can, and his frazzled mother who always knows how to save the day. It's a rainy Saturday morning and T plans to watch TV all day long. Then suddenly, lightning flashes, thunder crashes, and the room goes dark. The apartment has no power, and that means no TV for T! Now T's day will be dull, dull, dull--or so he thinks. Mama Rex has a plan to fill T's no-TV morning with rainy-day adventures. What will Mama Rex and T do to lighten up their day in the dark? Find out in this funny and charming story!