They'd come down the slope behind the cabin, and were determined to halt the girl before she summoned aid.

There, he could summon aid; close a net, perhaps, before the murderer got away.

I need some one else who is not known, particularly in case we have to summon aid.

The moment a Mistress detected anything inimical she summoned aid.

Now a new generation of gadgets promises to do more than summon aid.

She could scream, she knew, to summon aid, and perhaps it would be in time, more likely not.

The attendant knew the symptoms, and at once summoned aid.

One hand on the door, the man in uniform was pushing it open, as though to summon aid if an altercation followed.

But to summon aid will take time, and that runs fast for those you would succor.

And the hand-the hand can summon aid from those areas.