Rylee Adder left Eden thinking she'd put the worst day of her life behind her.

She was wrong.

Separated from her new family and Colton-the man she never thought she'd have to live without-Rylee finds herself in Boston facing her biggest challenge yet: surviving the Vipers' Den.

Plagued by nightmarish memories, she throws herself into uncovering evidence to bring down those threatening the ones she loves.

If Rylee fails, Eden's dark history is destined to repeat itself. But she's not the only one on the hunt for answers, and some secrets are desperate to stay buried.

Please Note: Summer Sparrow is Book Two of the Jackals and Vipers Duet, it is not a standalone.