A Dark Past

A dark past is the 3rd episode of Percy 10.

Plot
Rook,Ben and Percy must track down the evil Zs'Skayr before the evil ghost takes over Earth!

Characters
Ben Tennyson

Percy Samson

Azmuth

Rook Blonko

Villains
Zs'Skayr

Aliens Used
By Ben

XLR8

Upgrade

Swampfire

Ultimate Swampfire

By Percy

Big Chill

Swampfire

Ghostfreak

Major Events

 * Zs'Skayr returns.


 * Swampfire,XLR8,Upgrade and Ultimate Swampfire debut.


 * Ghostfreak gets reunlocked on both Ben and Percy's watches but only Percy uses him.