Just as I was getting back to the truck from Boston's hazmat, Brookline companies were investigating alarms sounding at 49 Marion Road. The annunciator panel showing a sprinkler alarm for the 7th floor of a 10 story OMD. As companies made the 7th floor they were met with a heavy smoke condition in the hallway. C2 ordered Box 3383 to be struck and for Engine 3 to lay in from a hydrant. A fire was found in an apartment on the 7th floor and was contained by the sprinkler system. Again, there wasn't much to be seen.