After his long and arduous chase brought Isidor time and again inches from his quarry - the mysterious Darcy, the "Heart Thief" - he found the tables turned on him, prisoner to the thief themself The enigmatic serval is full of surprises, not least of which is that, much to Isidor's distress, he rather enjoys their company. The thief seems equally flummoxed by their growing bond, but who can say what lies in their heart or motivates...