Soon his study ivory stride was heard as to and fro he paced and his old rounds upon planks so familiar to his tread that they were all over dented like geological stones with the peculiar mark
Only use colons after statements that are complete sentences. Don't use it after a sentence fragment. It may be used between independent clauses when the second sentence explains the first sentence.
Ex: He has three favorite movie genres: action, comedy, and drama.
"If you can’t fly, then run, If you can’t run, then walk, If you can’t walk, then crawl, but whatever you do, you have to keep moving forward." - Martin Luther King Jr.
The last sentence after the no.
