Vocabulary consisting only from characters you are able to read
夜中
よなか
during the night, at night; (arch) all night, the whole night; midnight, dead of nightmix
見つける
みつける
(1)to discover, to find (e.g. an error in a book), to come across, to detect, to spot, (2)to locate, to find (e.g. something missing), to find fault, (3)to be used to seeing, to be familiar with ichidan, jlpt3, jlpt4, verb, vtrans
兆
ちょう
(1)sign, omen, indication, portent, (num) (2)10^12, 1,000,000,000,000, trillion (American), (obs) billion (British) mix