Fig. 4

A placement targeting Red, The Other is placed on 4 edge spaces of the grid. It doesn't move this turn. Alternate placements =

Fig. 5

The next turn has passed. Red moves in hopes to outrun it. The Other advances 1 length in the direction it was placed.

Fig. 6

A turn passes. The Other advances its final length. It will stay in place for one more turn and return to the Hollow at the end of that turn. Red is safe.