The Secret Serum

There's a vampire loose in Crystal Cove, terrorizing the residents and stealing an odd assortment of loot. When the gang does some sniffing around, they discover an unlikely suspect… Daphne's MOTHER. Things are already strained within Mystery Inc., and with this latest blow, the gang is truly torn in half. Girls on one side, boys on the other.

Writing:
  • Joe Ruby
  • Ken Spears
  • Mitch Watson

Stars:
Release Date: 2010-07-12
Seasons: 1 2
TMDb: 8.2/10
  • Country: US
  • Language: English
  • Runtime: 22

Other episodes for this season

Beware the Beast from Below
Episode 1 - Beware the Beast from Bel...
The Creeping Creatures
Episode 2 - The Creeping Creatures
Secret of the Ghost Rig
Episode 3 - Secret of the Ghost Rig
Revenge of the Man Crab
Episode 4 - Revenge of the Man Crab
The Song of Mystery
Episode 5 - The Song of Mystery
The Legend of Alice May
Episode 6 - The Legend of Alice May
In Fear of the Phantom
Episode 7 - In Fear of the Phantom
The Grasp of the Gnome
Episode 8 - The Grasp of the Gnome
Battle of the Humungonauts
Episode 9 - Battle of the Humungonaut...
Howl of the Fright Hound
Episode 10 - Howl of the Fright Hound
The Secret Serum
Episode 11 - The Secret Serum
The Shrieking Madness
Episode 12 - The Shrieking Madness
When the Cicada Calls
Episode 13 - When the Cicada Calls
Mystery Solvers Club State Finals
Episode 14 - Mystery Solvers Club Stat...
The Wild Brood
Episode 15 - The Wild Brood
Where Walks Aphrodite
Episode 16 - Where Walks Aphrodite
Escape from Mystery Manor
Episode 17 - Escape from Mystery Manor
The Dragon's Secret
Episode 18 - The Dragon's Secret
Nightfright
Episode 19 - Nightfright
The Siren's Song
Episode 20 - The Siren's Song
Menace of the Manticore
Episode 21 - Menace of the Manticore
Attack of the Headless Horror
Episode 22 - Attack of the Headless Ho...
A Haunting in Crystal Cove
Episode 23 - A Haunting in Crystal Cov...
Dead Justice
Episode 24 - Dead Justice
Pawn of Shadows
Episode 25 - Pawn of Shadows
All Fear the Freak
Episode 26 - All Fear the Freak