four o'clock
` Yes , ' she said , ` you can go , if you will promise to come home at four o'clock . It gets dark early , and I am afraid to have you in the wood later than that . ' `` So Peter promised . He had a nice time with William and Jack , and at four o'clock he started to go home ; for he was a boy of his word . `` As he went along , suddenly , on the path before him , he saw a most beautiful gray squirrel , with a long bushy tail . '' ` Oh , you beauty ! ' cried Peter .