public function bookSearchAction(ParamFetcher $paramFetcher)
    {
        $api_key = $this->getApiKey();

        // Prepare API URL, always ask for stats
        $query = $paramFetcher->get('query');
        $index = $paramFetcher->get('index');
        $page = $paramFetcher->get('page');
        $url = "http://isbndb.com/api/v2/json/$api_key/books?q=$query&i=$index&p=$page&opt=keystats";

        // Send request
        $result = $this->sendRequest($url);

        // Remove keyId if present
        unset($result['keystats']['key_id']);

        return $result;
    }