The Mystery Duck's Story is the fourth story in Where's My Water?. The Mystery Duck's Story is an optional In-App Purchase that puts a magical twist on Swampy's Story. The regular Swampy Ducks are replaced with the teleporting and levitating Mystery Duck, or the water consuming Mega Duck, or a crew of ducklings. If the player doesn't collect the duck(s) on a level, S/he can not go onto the next. The pack cost USD 1.99.
The player can try the first five levels of this pack for free.
|Meet Swampy||N/A||June 28, 2012|
|Troubled Waters||12 Mystery Ducks|
|Under Pressure||30 Mystery Ducks|
|Sink or Swim||45 Mystery Ducks|
|Change is Good||65 Mystery Ducks|
|Boiling Point||85 Mystery Ducks||September 19, 2012|
|Stretched Thin||105 Mystery Ducks|
|Caution to the Wind||125 Mystery Ducks||October 30, 2012|
|Rising Tide||145 Mystery Ducks||November 15, 2012|
|Out to Dry||165 Mystery Ducks|