Megan's Thirteenth by Ceri Carpenter

Megan is a girl with supernatural, psychic powers that she does not fully understand. She is constantly on the look out for someone to advise her how to develop them, but the only people she knows who are able to help her are dead.

This does not deter Megan from seeking their assistance though.

In this story, it is Megan's thirteenth birthday and she is looking forward to her party, but there is never a day when her abilities do not come in useful and never a day when she is not keen to learn more about them.