R. M. Ballantyne 
Lost in the Forest Wandering Will’s Adventures in South America [EPUB ebook] 

"At sea once more!" said Will Osten in a meditative mood. Our hero made this remark one night to himself, which was overheard and replied to by his friend, Captain Dall, in a manner that surprised him. "It’s my opinion, doctor, " said the captain in a low voice, "that this is the last time you or I will ever be at sea, or anywhere else, if our skipper don’t look better after his men, for a more rascally crew I never set eyes on, and, from a word or two I have heard dropped now and then, I feel sure some mischief is in the wind. Come aft with me to a place where we ain’t so likely to be overheard by eavesdroppers, and I’ll tell you all about it. (Goodreads)