Used by the routine at EBBB. This special location handler routine is invoked when a character moves in a certain direction from one of the following locations:

Location(s)	Direction	Descriptor(s)
Inside no. 74, just to the left of the front door on the second and third floors	Left	B9F7
Between the stairwell and the first window to the left of the stairwell on each floor of the apartment building next to no. 19	Left	BF71
Between the stairwell and the first window to the left of the stairwell on the second, third and top floors of the apartment building next to no. 74	Left	C398
Between the second and third windows from the left on the second, third and top floors of no. 17
Between the second and third windows from the left on the second, third and top floors of no. 15
Between the stairwell and the first window to the right of the stairwell on each floor of the apartment building next to no. 19	Right	C3DB
Between the stairwell and the first window to the right of the stairwell on the second, third and top floors of the apartment building next to no. 74
The right end of the catwalk

However, the routine at EC07 does nothing special, which means that the location descriptors that invoke it (see the table above) are redundant.

The other special location handler routine addresses can be found at A116, A216, A316, A416, A516 and A616.