The titles, covers, and summaries for Clue Book #8, The Time Warp Wonder (https://www.amazon.com/dp/153441391X/ref=as_li_ss_tl?ie=UTF8&qid=1517776251&sr=8-2&keywords=Hardy+Boys&linkCode=ll1&tag=hardboyscasee-20&linkId=d59f8b7ff65992fc297a4b2b3e15d99f), which has an November 13, 2018, release date and Adventures #17, The Gray Hunter's Revenge (https://www.amazon.com/dp/153441150X/ref=as_li_ss_tl?ie=UTF8&qid=1517776251&sr=8-6&keywords=Hardy+Boys&linkCode=ll1&tag=hardboyscasee-20&linkId=667af6fdda53a05b5931ecd56de5a090), which has a release date for October 9, 2018 are both now available at Amazon.com
(https://www.hardyboyscasefiles.com/images/comingsoon/HBA_017.jpg) (https://www.amazon.com/dp/153441150X/ref=as_li_ss_tl?ie=UTF8&qid=1517776251&sr=8-6&keywords=Hardy+Boys&linkCode=ll1&tag=hardboyscasee-20&linkId=050fb627ca0acd7d81291719c47fe712) (https://www.hardyboyscasefiles.com/images/comingsoon/CB008.jpg) (https://www.amazon.com/dp/153441391X/ref=as_li_ss_tl?ie=UTF8&qid=1517776251&sr=8-2&keywords=Hardy+Boys&linkCode=ll1&tag=hardboyscasee-20&linkId=d59f8b7ff65992fc297a4b2b3e15d99f)
Hey! I like the spooky cover for HBA #17. :) 8)
Oddly enough, Nancy Drew Diaries #17 "Famous Mistakes" has not have a cover or summery yet, despite it's release date being two months before "The Grey Hunter's Revenge". It's not even mentioned on the S and S website. The Nancy Drew Clue Book "Boo Crew" has a cover and summery, and that comes out in October.
Apparently the hardcover versions for both books have been pushed back to December 4, according to Chapters. But the paperback of Gray Hunter is already shipping.