Roses of Doom is a horror novella by S.P. Wish (that is us) and it is available for FREE on Smashwords.com in multiple ebook formats (like pdf, epub etc.) Here is a summary-

When horror strikes..............black roses are left behind.

A school camping trip leads quirky middle schooler Mizu, her twin brother Kaji, her friend Akumu and school newspaper reporter Seiya to a mysterious mansion in Greenfire Forest. In the mansion, Mizu's friend suddenly vanishes only to reappear out of thin air in the middle of the room! Many other unexplained happenings follow until Mizu discovers an old newspaper with information about a centuries old intrigue which has remained hidden till now..........and no person who knows of its existence is allowed to live.......

The book trailer can be viewed on youtube- http://www.youtube.com/watch?v=uAFInpvLYoE

Here is the link to download it- http://www.smashwords.com/books/view/30899