S01E20: The Siren's Song
Feeling left out of the group, Velma goes solo to investigate attacks by amphibious "Fish Freaks" in the area around an abandoned oil rig, only to find a friend of her own... in the form of a mermaid!
Previous Episode 
Season 1
Beware the Beast from Below
S1E1 / 12 Jul 2010
The Creeping Creatures
S1E2 / 19 Jul 2010
Secret of the Ghost Rig
S1E3 / 26 Jul 2010
Revenge of the Man Crab
S1E4 / 02 Aug 2010
The Song of Mystery
S1E5 / 09 Aug 2010
The Legend of Alice May
S1E6 / 16 Aug 2010
In Fear of the Phantom
S1E7 / 23 Aug 2010
The Grasp of the Gnome
S1E8 / 30 Aug 2010
Battle of the Humungonauts
S1E9 / 06 Sep 2010
Howl of the Fright Hound
S1E10 / 04 Oct 2010
The Secret Serum
S1E11 / 11 Oct 2010
The Shrieking Madness
S1E12 / 18 Oct 2010
When the Cicada Calls
S1E13 / 25 Oct 2010
Mystery Solvers Club State Finals
S1E14 / 03 May 2011
The Wild Brood
S1E15 / 10 May 2011
Where Walks Aphrodite
S1E16 / 17 May 2011
Escape from Mystery Manor
S1E17 / 24 May 2011
The Dragon's Secret
S1E18 / 31 May 2011
Nightfright
S1E19 / 07 Jun 2011
The Siren's Song
S1E20 / 14 Jun 2011
Menace of the Manticore
S1E21 / 21 Jun 2011
Attack of the Headless Horror
S1E22 / 28 Jun 2011
A Haunting in Crystal Cove
S1E23 / 05 Jul 2011
Dead Justice
S1E24 / 12 Jul 2011
Pawn of Shadows
S1E25 / 19 Jul 2011
All Fear the Freak
S1E26 / 26 Jul 2011
Season 2
The Night the Clown Cried
S2E1 / 30 Jul 2012
The House of the Nightmare Witch
S2E2 / 31 Jul 2012
The Night the Clown Cried II: Tears of Doom!
S2E3 / 01 Aug 2012
Web of the Dreamweaver!
S2E4 / 02 Aug 2012
The Hodag of Horror
S2E5 / 03 Aug 2012
Art of Darkness
S2E6 / 06 Aug 2012
The Gathering Gloom
S2E7 / 07 Aug 2012
The Night on Haunted Mountain
S2E8 / 08 Aug 2012
Grim Judgment
S2E9 / 09 Aug 2012
Night Terrors
S2E10 / 10 Aug 2012
The Midnight Zone
S2E11 / 13 Aug 2012
Scarebear
S2E12 / 14 Aug 2012
Wrath of the Krampus
S2E13 / 15 Aug 2012
Heart of Evil
S2E14 / 16 Aug 2012
Theater of Doom
S2E15 / 17 Aug 2012
Aliens Among Us
S2E16 / 25 Mar 2013
The Horrible Herd
S2E17 / 25 Mar 2013
Dance of the Undead
S2E18 / 26 Mar 2013
The Devouring
S2E19 / 27 Mar 2013
Stand and Deliver
S2E20 / 28 Mar 2013
The Man in the Mirror
S2E21 / 29 Mar 2013
Nightmare in Red
S2E22 / 02 Apr 2013
Dark Night of the Hunters
S2E23 / 03 Apr 2013
Gates of Gloom
S2E24 / 04 Apr 2013
Through the Curtain
S2E25 / 05 Apr 2013
Come Undone
S2E26 / 05 Apr 2013
Frank Welker
Scooby-Doo / Fred Jones (voice)
Grey DeLisle
Daphne Blake (voice)
Mindy Cohn
Velma Dinkley (voice)
