▁at ▁ 2 1 : 4 8 , ▁and ▁at ▁approximately ▁ 2 2 : 0 0 ▁followed ▁a ▁Man ly ▁fer ry ▁through ▁the ▁anti - sub marine ▁net . ▁At ▁ 2 2 : 5 2 , ▁M - 2 4 ▁was ▁sp otted ▁by ▁a ▁Chicago ▁search light ▁operator ▁less ▁than ▁ ▁to ▁the ▁mo ored ▁cru iser ' s ▁star board , ▁and ▁on ▁a ▁course ▁roughly ▁parallel ▁to ▁the ▁ship ' s ▁facing . ▁Chicago ▁opened ▁fire ▁with ▁a ▁ ▁gun ▁and ▁a ▁quad ru ple ▁mach in eg un ▁mount , ▁but ▁inf lic ted ▁minimal ▁damage ▁as ▁the ▁weapons ▁could ▁not ▁de press ▁far ▁enough . ▁Some ▁of ▁the ▁ ▁shell s ▁ski pped ▁off ▁the ▁water ▁and ▁hit ▁Fort ▁Den ison ' s ▁Mart ello ▁tower , ▁while ▁fragments ▁were ▁later ▁found ▁in ▁the ▁sub ur bs ▁of ▁C rem or ne ▁and ▁Mos man . ▁The ▁senior ▁officer ▁present ▁ab o ard ▁Chicago ▁ordered ▁the ▁crew ▁to ▁begin ▁prepar ing ▁for ▁departure , ▁and ▁for ▁USS ▁Per kins ▁to ▁begin ▁an ▁anti - sub marine ▁screen ing ▁pat rol ▁around ▁the ▁cru iser , ▁orders ▁that ▁were ▁rev oked ▁by ▁the ▁s cept ical ▁Captain ▁Howard ▁B ode ▁when ▁he ▁arrived ▁on ▁board ▁at ▁around ▁ 2 3 : 3 0 . ▁▁ ▁and ▁ ▁also ▁fired ▁upon ▁M - 2 4 ▁as ▁it ▁fled ▁west ▁toward ▁the ▁Sydney ▁Har bour ▁Bridge , ▁before ▁the ▁m idget ▁was ▁able ▁to ▁sub merge ▁and ▁escape