A Three Legged Race Up a Mountain is a Matter of Life and Death >> Battle of Shells in the Iguazu Mountains is the second chapter of Heavy Object: An Audition War.
- The 37th travel to the Iguazu District in pursuit of the Mass Driver Conglomerate, but are bombarded as they come in to land on the coast. They are contacted by the 52nd Mobile Maintenance Battalion, but their commander, Halreed Copacabana, is more interested in getting to take out the enemy Object himself than cooperating. However his Bright Hopper is destroyed by a shot from the enemy's Lisolette.
- Following the destruction of the Bright Hopper, the 52nd attempt to blow up the Iguazu Dam in a plan to defeat the Lisolette and avenge themselves. Heivia delays them while Quenser locates the enemy and helps the Baby Magnum to destroy it.
- Quenser, learning of Froleytia's circumstances, tricks Halreed into giving up on a political marriage.
- Atlantic Ocean, Near Falkland Islands
- Iguazu District
- Iguazu Dam
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