Eye of the Fortune Teller (Ghosts of Fear Street #6) by R.L. Stine - Vintage Paperback

WHO'S AFRAID OF THE GHOSTS OF FEAR STREET?

Not Kelsey Moore. She's lived on Fear Street all her life, and she's not afraid of anything.
Until she meets Madame Valda - a strange old woman who says she can see into the future. She tells Kelsey that only fools are fearless. Kelsey just laughs.

But she isn't laughing when she climbs into bed and finds it full of disgusting sand crabs.

Or when she goes for a swim- and finds the ocean swarming with slimy jellyfish! All of Kelsey's worst fears are coming to life!

Has Madame Valda doomed Kelsey to live in fear forever?