You were Sirius and Remus' son, you were a little baby of 5 months old and they loved you SO much, you got Remus' eyes and Sirius' hair. Right now try were panicking and worried because they couldn't find you around Grimmauld place.

Remus was upstairs and searching every drawers, rooms, bathrooms, closet etc while Sirius was downstairs, searching the hallways, living room and finally the kitchen.

That's where Sirius heard crying in one of the square drawer, easy for a baby to enter, so you could can fit in so he rushes to the drawer and open it.