Book request: around 2011 I read a young adult/ horror book based in a small town during a snow storm, the book centered on two sisters who were stuck alone at home because their parents flight was delayed or something. strange things start happening such as their phone stops working, their dog goes missing. someone in a ski mask starts tormenting the girls, they think its just the older sisters jealous boyfriend bothering them until they find the aforementioned boyfriend dead. I was in the 6th grade when i read this and im not even sure why my school had the book in its library but i recently remembered it and the fact that i cant remember the title or author is bothering me, i have searched all over the internet, if it helps i remember the cover had a creepy looking snowman on it. anyway if you could help me remember the book title that would be greatly appreciated, thank you,

Matching book description: BEWARE THE KINDNESS OF STRANGERSThe phone and the radio were dead, but they'd already heard the news: a mass murderer was on the loose. Hannah and her younger sister Meg were miles from the nearest neighbor, trapped in a raging blizzard, home alone. Until the knock at the door. Two strangers burst into the house, wounded, bleeding and nearly frozen. Hannah couldn't just tu BEWARE THE KINDNESS OF STRANGERSThe phone and the radio were dead, but they'd already heard the news: a mass murderer was on the loose. Hannah and her younger sister Meg were miles from the nearest neighbor, trapped in a raging blizzard, home alone. Until the knock at the door. Two strangers burst into the house, wounded, bleeding and nearly frozen. Hannah couldn't just turn Lance and Jonathon away, so she made them promise to leave in the morning. But they stayed, insisting the girls needed protection. Wary of Lance's brooding good looks, Hannah was drawn to Jonathon's reassuring presence. Until the dog, and the axe, disappeared--and the girls wondered "protection from whom?" ...more