Experimental work, and available only through the links provided.
Free PDF of first chapter. Link to POD book for purchase in PDF at the end of the sample text (blue bar).
https://drive.proton.me/urls/A20BTKB6MR#Vc576zyIPQUF
Another 'Gap Novel' - the adventures Karl May mentioned inside his Winnetou Trilogy, but never wrote. This is the first telling of Old Shatterhand's adventure as a detective in New York after being shipwrecked in the Gulf ...