How to tell my parents I lost a really expensive massive textbook?

I lost a textbook and can't think of where I put it. Now I need to buy it, and its like 70 bucks. My parents will make me pay, but I never spend money and i am afraid that my parents will be ashamed of me. How do I tell them?How to tell my parents I lost a really expensive massive textbook?
I am sure they will understand. It is only a book and everyone losses this it happens. Come clean sooner rather than later. Good luckHow to tell my parents I lost a really expensive massive textbook?
try to tell the truth, be honest. it'll be hard if you practice not telling the truth especially to your parents, it might be the cause of their distrust to you..