Startled mallards take flight from the site of earliest ventricular activation in atrial pacing (blue Labrador retriever in IVC) in this child with right anterolateral accessory pathway.

Mapped against a backdrop of southeastern Minnesota's autumn quietude, this pathway turned out to be quite epicardial, with a discrete local potential measured in the right coronary artery (shotgun barrels).

Chronic history of prolonged tachycardia has caused intermittent ST depression in this boy's ECG (rabbit silhouettes running through myocardium) as well as increasing dyspnea on exertion. Three weeks after successful ablation, the boy went hunting with his parents and older brother and bagged his first fat mallard (pulmonary artery).