Part of launch of Disney’s John Carter – a sweeping action adventure set on the mysterious and exotic planet of Barsoom (Mars) – fans can send a message to a martian. Enter some text into the box and send your Facebook and Twitter friends a message in Martian and share your secret message. Other games and engagements include a Martian decoder so you can decode Martian symbols. A puzzle mini-game allows fans to try and unlock the mysteries of Barsoom, a land that holds great powers and hidden treasures.