The abominable snowman of Pasadena - R. L. Stine

They're baa-ack! Make way for the bestselling children's series of
all time! With a fresh new look, GOOSEBUMPS is set to scare a whole
new generation of kids. So reader beware--you're in for a scare!
Jordan Blake and his sister, Nicole, are sick of the hot weather
in Pasadena, California. Just once they'd like to have a real winter.
A real winter with real snow.
And then, it happens. The Blakes are taking a trip to Alaska! Mr.
Blake has been asked to photograph a mysterious snow creature there.
Poor Jordan and Nicole - they just wanted to see snow. But now,
they're being chased by a monstrous creature. A big furry-faced
Creature...known as the Abominable Snowman!