"the corridor seemed to go on and on , with the smell of decomposing flesh growing increasingly odious until , abruptly , the corridor opened into a cavernous room that looked like something out of an old horror flick . alex swept his flashlight back and forth , revealing a dozen small animal cages along one wall , and six larger cells on the other . they found the source of the horrible smell lying on its stomach a foot or so from the last _ ..." What is the word in the blank space (_)? The answer is
cage