Pout-pout Fish in the Big-big Dark, The by Deborah Diesen; 2010. Hardcover (Ch-PIC)

Very young children will swim along with Mr. Fish as he journeys deep into the ocean to new and mysterious places. They will discover, as Mr. Fish does, the power of friendship to light the way through the big-big dark.Mr. Fish feels nervous venturing deep in the sea to look for Ms. Clam's lost pearl until Miss Shimmer helps him conquer his fear of the dark.