Vocabulary consisting only from characters you are able to read
危うく
あやうく
(1)barely, narrowly, (2)almost, nearly mix
返る
かえる
(1)to return, to come back, to go back, (2)to turn over, (suf,v5r) (3)(after the -masu stem of a verb) (to become) extremely, (to become) completely godan, verb, vintrans
危ない
あぶない
dangerous, critical, grave, uncertain, unreliable, limping, narrow, close, watch out!adj, jlpt5
果たす
はたす
(1)to accomplish, to achieve, to carry out, to fulfill, to fulfil, to realize, to execute, to perform, to do, (suf,v5s) (2)to do ... completely, to do ... entirely godan, verb, vtrans
勉める
つとめる
to endeavor (endeavour), to try, to strive, to make an effort, to exert oneself, to be diligentichidan, verb, vtrans