brake fluid

This sounds serious! Do not even try to drive the car, your safety is in question...and the safety of those around you. Have it towed to a shop to check it... http://repairpal.com/toyota-repair-in-abington-massachusetts ...those are shops near you. Otherwise, crawl underneath the vehicle and physically look for the puddling. If you lost the pedal to the floor, the leak must be significant. If you see absolutely no external signs of leaks, the master cylinder could have an internal leak -- but usually that is not likely going to make the level low.