Translation of consign in Spanish

Our day came to an end and Samu brought us back to the hotel. We agreed to take a ride with him one more time and that was on the way to the airport. We took his cellphone number just in case.
Just as we finished exploring the temple and were about to leave the big tourist buses arrived. We listened to a Cambodian song played by a group of handicapped musicians and left to see other sites.
I guess it is a very interesting book, but I did not entirely understand it. What did the author try to say, what message did he want to deliver? Do you want that I recommend another book?