What is the theme of river thunder by will hobbs

im not gonna tell you the exact awnser but heres a parragraph that tells you the awnser in 2 sentences

It was partly because it was the next challenge for me as a writer, to imagine the world from a girl's point of view, but mostly it was because I thought that outdoor adventure novels needed to catch up to real life. Outdoor adventure is every bit as appealing to girls as it is to boys. Just look around at who's out there skiing, mountain biking, kayaking, river rafting, climbing-girls are active in every kind of sport. On our own hikes and river trips we see at least as many girls as boys.

explanation:

the silver bells of the sleds are merry and keep time in the winter nights while the sky twinkles happily. the golden bells of weddings are delightful in their peaceful happiness, foretelling a rapturous future. meanwhile, the brazen alarm bells scream frightfully in the night, with a discordant and desperate sound. in their clamor, these bells convey terror, horror, and anger. finally, the iron bells are solemn and melancholy, while those in the church steeple are like ghouls who feel happiness. the king of the ghouls, who rings the bells, cheerfully keeps time with the moaning and groaning bells.