/lit/ - Literature

I liked Hitchhiker so I read Douglas Adams's Dirk Gently books and what the fuck I don't understand the ending in either book. I don't understand how the "solution" in the first book resolves anything and in the second book it's like it just builds up to a climax and then skips the scene where Dirk presumably defeats the villains and then we see the villains get defeated and the happy ending.