"Tick-tock" is an exciting thriller from the famous American writer James Patterson. The main characters - detective Emmy Rose and FBI analyst Henry Dwyer - are forced to join forces to stop a ruthless serial killer who makes mysterious calls to the police and tries to carry out his next terrible criminal event. This book is the height of tension and nervous intrigue, which keeps the reader in tense anticipation of the next plot twist. "Tick-tock" is not just a book, it is a journey into the world of creepy and unpredictable events that will leave you sleepless until the last page.