What do the following words have in common?

WAX
BEAT
CALL
SCARE
SQUEAK

HINTS:
#1: Think alphabetically
#2: It has to do with the last letter in each word.

Answer:

Moving the last letter of each word one step forward in the alphabet will create a new word:

WAX - WAY
BEAT - BEAU
CALL - CALM
SCARE - SCARF
SQUEAK - SQUEAL

Credit: GAMES Magazine - Jan/Feb 1981
H.H.
WORDLY WISE