four
o'clock
But she was already perfectly at rest in the delightful certainty that ` mamma would know what was best to do . ' So , though deeply interested and in a sense anxious , she had no nervous misgiving as to the result of the effort which she felt sure was going to be made in behalf of her friends , and she spent the afternoon very happily with her sister and brother , working at the famous house they had been allowed to build in a corner of the garden . It was very interesting , and even Jacinth , in some ways less ` grown-up ' than she liked to fancy herself , found it very absorbing . By half-past four o'clock they had all worked so hard that they really began to be very tired and rather hot . ` I wish it was tea-time , ' said Jacinth . ` We are all to have tea together while the holidays last . Lady Myrtle thought mamma would like it .