The Pirate Challenge will be held Sept 18-25
Books about pirates, with a pirate on the cover, peglegs, eye patches.... etc. are eligible. Multiple releases welcome - remember, there's a "rat" in every pirate so these books will work for the usual animal release in September.
[updated to give the exact dates]
It isn't all month, is it?
The original post says "to be held in mid September". Last year's dates were 12-19 September.
I guess this year's dates will include "Talk Like a Pirate Day" which is 19 September.