Fisher-Price Think Think Darby Now is the time to Think, Think, Think with Darby This 12" Darby doll brings the "Think, Think, Think" sequence from the show to life and allows the child to interact with Darby When you press Darby's tummy, she will come to life and more move her hips and head while saying phrases Once the sequence is over, the Super Sleuths have solved the mystery and Darby will have the answer to the problem