She had improved the scheme in one detail.

She had put on her own belt and coiled the rope round her waist, so the only delay would be in bringing her father's belt.

She would keep the bullet-proof dress intended to be his strapped in a packet on her back, so that if occasion should be favourable he would not want to put it on till he and she should have reached the platform of the aeroplane.

In such case, I should not steer away from the Tower at all, but would pass slowly across it and take up the captive and his brave daughter before leaving.

I had learned from local sources that the Tower was in several stories.