April is one of five foster kids living at Winterborne Home, a sprawling mansion full of secrets. The biggest secret is that Gabriel Winterborne, their reclusive millionaire guardian, is actually The Sentinel, a masked vigilante tasked with protecting the city.

When Gabriel goes missing, it's up to the kids to find him before his enemies do.

Full of adventure, gadgets and humour, the second book in the captivating new series from the bestselling author of Gallagher Girls will have you hooked!

Praise for The Winterborne Home for Vengeance and Valour:

'In her middle grade debut, Carter (Not If I Save You First) offers up mystery, intrigue, and swashbuckling action in a rollicking story of long-lost secrets and found family.' - Publishers Weekly

'This is a wonderful, fast-paced story that is equal parts fun and mysterious. The characters are really enjoyable, and readers will love the unique talents that each one has!' - Lamont Books

'Hand this one to those who enjoy action, mystery, and kick-butt characters.' - Booklist

'Thrilling, on the edge of your seat reading, Winterborne Home For Vengeance and Valour is a gripping mystery with more twists and turns than a labyrinth ... This well-crafted, fast-paced novel demands a one-sitting read. Ally Carter has created an unstoppable heroine that blazes through the book accompanied by a fantastic supporting cast of characters. Action-filled pages keep the reader glued to their seat until the end. I loved it and can't wait for the next instalment.' - Anastasia Gonis, Kids Book Review