UnScramble this Word: c d i i d t c a?

Questions

This delightfully soft topping, care of your local bovine?

This was originally published in the U.S. as _Murder in the Calais Coach?

What book is the connection between E. Nesbitt and railways?

Where did Mr Badger live in _The Wind in the Willows?

Which creatures lived in Arnold Bros (est. 1905)?