five o'clock
But little did Bet realize that the hunting for a treasure was to bring to the girls , not only the most thrilling adventure of their lives , but danger , suspense and fear . To the delight of the girls , the next morning was clear . It had rained in the night and they had been sure that it would storm and they might have to stay at home . The sun rose pleasantly warm , but the hour was five o'clock and the girls knew that before breakfast time it would be almost unbearably hot . `` But what do we care ? '' laughed Bet gaily . `` We 're out for adventure .