Clark’s hands dropped to his sides. The letter fell to the marshy ground.

I turned slowly, staring out at the shifting shadows.

“Gretchen.” Clark choked out my name. “Do you hear that? What is that sound? What is it?”

“Uh … it sounds like a whistle.”

“Th-that’s what I thought,” he whispered. “What do we do now? Any ideas?”

“No, Clark,” I replied softly. “I don’t have any more ideas. How about you?”

R.L. Stine’s books are read all over the world. So far, his books have sold more than 300 million copies, making him one of the most popular children’s authors in history. Besides Goosebumps, R.L. Stine has written the teen series Fear Street and the funny series Rotten School, as well as the Mostly Ghostly series, The Nightmare Room series, and the two-book thriller Dangerous Girls. R.L. Stine lives in New York with his wife, Jane, and Minnie, his King Charles spaniel. You can learn more about him at RLStine.com.

GOOSEBUMPS®

MOST WANTED

#1 PLANET OF THE LAWN GNOMES

#2 SON OF SLAPPY

#3 HOW I MET MY MONSTER

#4 FRANKENSTEIN’S DOG

#5 DR. MANIAC WILL SEE YOU NOW

#6 CREATURE TEACHER: FINAL EXAM

#7 A NIGHTMARE ON CLOWN STREET

#8 NIGHT OF THE PUPPET PEOPLE

#9 HERE COMES THE SHAGGEDY

#10 THE LIZARD OF OZ

SPECIAL EDITION #1 ZOMBIE HALLOWEEN

SPECIAL EDITION #2 THE 12 SCREAMS OF CHRISTMAS

SPECIAL EDITION #3 TRICK OR TRAP

SPECIAL EDITION #4 THE HAUNTER

GOOSEBUMPS®

SLAPPYWORLD

#1 SLAPPY BIRTHDAY TO YOU

#2 ATTACK OF THE JACK!

#3 I AM SLAPPY’S EVIL TWIN

#4 PLEASE DO NOT FEED THE WEIRDO

#5 ESCAPE FROM SHUDDER MANSION

#6 THE GHOST OF SLAPPY

GOOSEBUMPS®

Also available as ebooks

NIGHT OF THE LIVING DUMMY

DEEP TROUBLE

MONSTER BLOOD

THE HAUNTED MASK

ONE DAY AT HORRORLAND

THE CURSE OF THE MUMMY’S TOMB

BE CAREFUL WHAT YOU WISH FOR

SAY CHEESE AND DIE!

THE HORROR AT CAMP JELLYJAM

HOW I GOT MY SHRUNKEN HEAD

THE WEREWOLF OF FEVER SWAMP

A NIGHT IN TERROR TOWER

WELCOME TO DEAD HOUSE

WELCOME TO CAMP NIGHTMARE

GHOST BEACH

THE SCARECROW WALKS AT MIDNIGHT