The Basilisk

My son and I always refer to this section of MTB track as The Basilisk as it twists and turns, rises and falls like a long snake. We have imagined that if the Basilisk had swallowed the Wesley Girl (Ginny) whole and that was the first bump in the track. Then had swallowed Harry Potter making the next rolling bump. That could have made an interesting alternative ending for this book. Imagination is a great thing. The cache is a camo container just off the track. 
 

Enjoy your visit and ride also check the closing times for the gate if you are here later in the day. You can find the cache at:
 

The puzzle 

You need to find out which book the Basilisk appears 

Which month was the book published in the UK = A

Which month was the book published in the US = B

S 43° 27.1AB E 172° 29.3AB