The Haunted Band Room (The Haunted Mansion #2)

Megan is getting pretty mixed up with the creatures inside of the Mansion, and tells Katelin not to go back. Well, Katelin doesn't listen very well...
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Warning: this book is a rather fast read.
. . .

K. Weikel uses her three-dimensional characters to tell stories of life and adventure and magic.
"The One-Hundred" won the Wattys Award in 2015 and has reached over two million reads. Weikel has also won the 2017 Writers Awards for Building Monsters. She has written 60 books, including her first manga, "Katharsis". To learn more, visit her website: http://www.kweikel.com
SERIES:
Underdogs (4)
Replay (13)
Katharsis (1)
The One-Hundred (6 Books, 1 Short Story, 1 Novella)
The Haunted Mansion (4)
The Blood Room [3 Alternate Endings]
TRILOGIES:
Dead Men
Maskless Trilogy
Trapped Trilogy
COMING SOON (1)
DUOLOGIES:
The Unnamed Duology
Stop; Go
STAND-ALONES:
Waterlogged
Through the Dimension of Nightmares
When the Sky Eats
Creatures of the Below
Nord and the Bord
Sameness
Building Monsters
Dollhouse
The Vampire's Carnival
Krystal's World
Labyrinth
Figures
Match
Caged
List X