C743 Photographic amnesia

"Nope." Lin Mo said in a deep voice, "But we can't hide it for long. Tomorrow at dawn, they will find that the account book is missing."

Yu Heng frowned and said, "Father, your son thinks that we shouldn't alert the enemy before investigating thoroughly. Not as good as... Shall we make a copy and return the book before dawn? "

Even if they copied it together