Sean Patrick O'Reilly

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cover image of Hide and Shriek!

Hide and Shriek!

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of The King of Halloween Castle

The King of Halloween Castle

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of Lost in Spooky Forest

Lost in Spooky Forest

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of Monster Mansion

Monster Mansion

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of My Missing Monster

My Missing Monster

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of New Monster in School

New Monster in School

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2010)

cover image of Homesick Witch

Homesick Witch

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
(2014)

cover image of Science Fair Nightmare

Science Fair Nightmare

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
(2014)

cover image of Homesick Witch

Homesick Witch

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2012)

cover image of The Abominable Snow Kid

The Abominable Snow Kid

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2012)

cover image of The Gremlin's Curse

The Gremlin's Curse

Mighty Mighty Monsters (Series)

Sean Patrick O'Reilly Author
Arcana Studio Illustrator
(2012)