Tolin and the Thieving Trolls

Creeping along the top, he saw smoke and a while later his sister walked out of a cave with another troll. When the troll went back inside, Tolin called out like a owl. 'Who! Who! The secret sign when they called each other. His sister looked up but he could see that she was scared. He beckoned to her and threw down a rope. She ran to him and grabbed the rope. He pulled on the rope and when she was nearly at the top, the troll came out of the cave.
The troll shrieked in anger and ran forward. But Tolin pulled his sister to the top and grabbed her hand."Oh, Tolin, I thought I would never see you again.""Come Bruno, we have to hurry, before the other trolls come back. How many trolls are there?""There are only two, but they are horrible, the one troll beat me."