▁July ▁ 1 3 4 8 , ▁but ▁was ▁subsequently ▁continued ▁until ▁ 1 3 5 5 . ▁Edward ▁appointed ▁Am ery ▁of ▁P avy ▁captain ▁of ▁Cal ais ▁and ▁ordered ▁the ▁rest oration ▁of ▁the ▁city ' s ▁fort ifications ▁while ▁he ▁returned ▁to ▁England , ▁landing ▁at ▁Sand wich ▁on ▁ 1 2 ▁October ▁ 1 3 4 7 . ▁ ▁S ale ▁of ▁Cal ais ▁Some ▁time ▁in ▁ 1 3 4 9 , ▁without ▁the ▁knowledge ▁of ▁either ▁Edward ▁or ▁Philip , ▁Am ery ▁entered ▁into ▁a ▁secret ▁agreement ▁with ▁Geoff rey ▁de ▁Char ny , ▁a ▁French ▁kn ight ▁and ▁governor ▁of ▁nearby ▁Saint - O mer , ▁for ▁the ▁sale ▁of ▁Cal ais ▁to ▁Geoff rey ▁in ▁exchange ▁for ▁the ▁sum ▁of ▁ 2 0 , 0 0 0 ▁é cus . ▁Upon ▁discovery ▁of ▁the ▁plot , ▁Edward ▁sum mon ed ▁Am ery ▁to ▁London ▁and ▁up bra ided ▁him ▁for ▁his ▁bet ray al , ▁ordering ▁him ▁to ▁keep ▁the ▁b arg ain ▁with ▁Geoff rey ▁and ▁inform ▁him ▁before ▁the ▁French ▁arrival . ▁Am ery ▁informed ▁the ▁king , ▁who ▁brought ▁an ▁expedition ary ▁force ▁under ▁the ▁command ▁of ▁Sir ▁Walter ▁Mann y ▁to ▁amb ush ▁Geoff rey ' s ▁forces ▁in ▁December ▁ 1 3 4 9 . ▁On ▁the ▁last ▁day ▁of ▁December , ▁Geoff rey ▁arrived ▁before ▁dawn ▁with ▁ 5 0 0 ▁l anc ers ▁to ▁occup y ▁the ▁city . ▁Am ery ▁received ▁his ▁payment ▁of ▁ 2 0