▁him , ▁Roland ▁lear nt ▁from ▁Catherine ▁that ▁Father ▁Am bro se ▁had ▁been ▁ev icted ▁from ▁his ▁monaster y , ▁and ▁he ▁p led ged ▁himself , ▁for ▁her ▁sake , ▁to ▁assist ▁the ▁imprison ed ▁queen ▁in ▁recover ing ▁her ▁freedom . ▁A ▁plan ▁of ▁escape ▁arranged ▁by ▁George ▁Douglas ▁having ▁failed ▁through ▁the ▁vig il ance ▁of ▁the ▁Lady ▁of ▁L och le ven , ▁Roland ▁under to ok ▁to ▁for ge ▁a ▁false ▁set ▁of ▁keys , ▁and ▁the ▁ab bot ▁arrived ▁dis gu ised ▁as ▁a ▁man - at - ar ms ▁sent ▁by ▁Sir ▁William ▁to ▁take ▁part ▁in ▁guard ing ▁the ▁castle . ▁As ▁soon ▁as ▁the ▁cur f ew ▁had ▁to l led , ▁a ▁pre con cert ed ▁signal ▁was ▁made ▁from ▁the ▁shore , ▁and ▁Roland ▁cont riv ed ▁to ▁substitute ▁his ▁for ged ▁keys ▁for ▁the ▁real ▁ones . ▁At ▁mid night ▁the ▁garden ▁gate ▁was ▁un locked , ▁a ▁boat ▁was ▁in ▁waiting , ▁Henry ▁Se y ton ▁came ▁forward , ▁and ▁the ▁queen , ▁with ▁all ▁her ▁ad her ents , ▁was ▁safely ▁af loat , ▁when ▁the ▁alarm ▁was ▁given . ▁Roland , ▁however , ▁had ▁run ▁back , ▁ere ▁they ▁started , ▁to ▁turn ▁the ▁lo cks ▁on ▁their ▁j ail ers , ▁and , ▁until ▁they ▁were ▁out ▁of ▁reach ▁of ▁mus ket ry , ▁George ▁Douglas ▁protected ▁Mary ▁by ▁placing ▁himself ▁before ▁her . ▁On ▁landing , ▁horses ▁were ▁in ▁read iness , ▁and ▁before ▁day