Hylstone or Hailstone: How To spell?
The word Hylstone is misspelled against Hailstone, a noun meaning "A single particle of ice falling from a cloud; a frozen raindrop; a pellet of hail."
Word contains consecutive vowels 'AI' in between alphabets h & lstone is misspelled as 'Y'Wrong Spelling:  h-y-lstone  Correct Spelling:  h-ai-lstone 
Find more incorrect spellings of Hailstone to spell right way.