What happened that day

CAUTION SEXUAL CONTEXTS AND ABUSE...
Her Mom's dead, She's moving to America from England, Living alone with her dog and only 16. But what made her mom kill herself? and are they after her two? Everything gets revealed slowly after her mothers death, not only that but people are hiding things from her, and where's her father?
ITS A BIT BORING AT THE START BUT GETS BETTER! Also this is my first book, so I'm sorry if there is any wrong spellings and bad gramma.