At the published co-ords you will not find a cache, but would give you a hint as to the identity of this author.
This prolific writer did not live in the Crystal Palace triangle, but a bit further to the east in East Dulwich.
This author has sold over 600 million books in 90 different languages.
They were born in ABCD and died in EFGH. At their peak they were accused of using an army of ghost writers, which they vigorously denied.
The author was criticised for the continuous recycled plotlines, to which they responded that they were not interested in anyone’s opinion over the age of 12 and that the critics were motivated by jealousy.
Cache can be found at N 51 25.D(F-G)((H-G)*2) W000 04.(G-A)E(H-B)
(Checksum for all numbers is – 37)