To reach this cache from numbers 4 & 5 in the series you need to expect mud, unless it's been particularly dry. It's just hanging around waiting to be found.
At the end of the path turn right and head for No.7 - Beautiful Views if you want the medium or long route. However, if you want the short route turn right into High House Lane and look out for the stile on your right which will take you to The Bridge and onwards back to Hadlow.