The Gutter and the Grave is a stand-alone title by Ed McBain. Per SYKM, it is a "revised and restored version" of
I’m Cannon—For Hire, originally written with pseudonym Curt Cannon. Whatever a "revised and restored version" is...
In any case, the Hard Case Crime edition is $1.99 in the US right now.
Kindle US:
https://www.amazon.com/dp/B00IHMBW0K
Kobo US:
https://www.kobo.com/us/en/ebook/the...-the-grave-ebk