Holly Graham is revealed to be the real Mastermind, from (PS2).
Scooby-Doo! Night of 100 Frights
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Holly Graham is the niece of Professor Alexander Graham, and friend of Daphne Blake. Insert...
The Mastermind was the disguise of Holly Graham. Insert details here.
Holly Graham is revealed to be the real Mastermind, from Scooby-Doo! Night of 100 Frights (PS2).
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