The next book in the Circle of Roses series is The Ledger of Souls. Vicky Moore takes on this case alone. At Hargrove manor the old ledger hidden beneath the tree has names written in ice. Those souls were trapped in ice. They want her to help them. She must find the book beneath the willow tree before it's too late. 

This book will be out at amazon soon and is available for preorder at books2read.