Gillbert. 2, The curious mysterious

"Gillbert is a little merman prince, son of King Nauticus, the ruler of the seven seas. Gillbert has a really big little sister named Matilda--who comes from the aquatic part of outer space, a mermaid friend named Anne Phibian, and a little turtle best buddy named Sherbert. Today is a big day for Gillbert and friends. It's Everything Day and anything can happen on Everything Day! And if the prophecy is true, the Gogo-Gygoontah Fish could awaken a...