Trouble with Ghosts: Ruby Clair

'Ruby? I've been wanting to get in touch with you for ages. We're pretty sure you're ready to listen...' 
Ruby Clair is used to weird stuff happening. Like being able to see the lights around people and hearing whispery voices in the dark. But getting a call from her cousin Nicola goes way beyond the weird. It's impossible.
If this is a gift, Ruby's not sure she wants it. Why does the one thing she seems to be good at have to be so spooky?