`` if half of the local beasts are here , which i must assume unlikely , '' hammond said , `` then in seven such cities-without consideration for the beasts which live in the more remote areas- '' his calculations were interrupted by all the dragons setting up a roar in full voice , kulingile and temeraire belatedly sitting up on their haunches to join in ; before the noise had died away , the copacati was launching himself aloft , and iskierka shot after him .