four o'clock
` If you had n't all been such sneaks , I expect heaps of your Kings had sense enough to have got rid of the dragon for you . Only I suppose you 've never told them in time . Now , look here . I do n't want you to do anything except keep your mouth shut , and let there be a boat , and no boatman , on the beach under the lighthouse at four o'clock . ' ` But the sea 's all treacle . ' -LSB- Illustration : ' `` Speak to the dragon as soon as it arrives . '' ' Page 263 . -RSB-