The Whoosh & Vanish Mystery
- Episode aired Oct 6, 2010
- TV-Y
- 56m
[HBO] HD. 'The Whoosh and Vanish Mystery.' Elmo and Telly use science to investigate what made their things disappear.[HBO] HD. 'The Whoosh and Vanish Mystery.' Elmo and Telly use science to investigate what made their things disappear.[HBO] HD. 'The Whoosh and Vanish Mystery.' Elmo and Telly use science to investigate what made their things disappear.