Retrieve Deagle's backpack holding his spare parts from one of the other holding cells (random). It is possible to find an empty backpack that looks just like Deagle's. Don't worry, try another cell and you'll find the right one.
Return to Deagle and hear the rest of his harrowing tale.
When you arrive, you'll find yourself in a large room that's over the top of the Zoo itself. You have to take a passageway down in order to find doors to the holding cells. Should you decide to kill some of the guardian clockworks in that first overhead room, be aware that certain spells, combat arts and positioning of your group can trigger aggro from the monsters below. It's possible to use an area-effect spell upstairs on a single monster and suddenly find yourself battling three heroic zookeepers and a handful of centaurs that teleported through the floor to fight you. Be careful!