Thanks to Guapetona who supplied this website http://www.hostalsilserranos.com/ which I used to e-mail Hostal La Macarena near the Plaza Mayor in Madrid. Although you cannot yet reserve on-line, their e-mail is macarena@silserranos.com which you can access at the website which also includes photos. Rates for May are 70 Euros per night, taxes included. It comes well-recommended!--CC