10:50Look and ReadZzaap and the Word MasterEpisode 1: Into the Crystal CavernsBBC Two Duration: 20 minutes Mon 7th Apr 2008, 10:50 on BBC Two Northern IrelandTwo children travel through a mystery underground world, solving word clues to get to the next level.GenresLearningPrimaryBrandLook and ReadSeriesLook and Read: Zzaap and the Word Master Source: BBC Online