Key to the Kingdom. Set of 3 books

Once Lena Lapina went to school - but she got into the kingdom. And all due to the fact that she got involved in a quarrel at a stop and forced her to shut up a screaming aunt. She ran her hand - and the aunt fell silent. Well, yes, a little strange. But so that after that the king from another world has gotten up behind you - this is too much. At first, Lena thought that she was mocking her like at school (she was the smallest in the classroom), but then it turned out that everything was very, very serious, and in the hands of a simple schoolgirl Lena Lapina, the magical power and the fate of the new kingdom. And in front of the newly made magician, a long, difficult path is waiting for the road, when there are full of strange (very strange) and very dangerous monsters around. But even more dangerous to trust someone who is not worth trust