My boss has resigned

Oh no..... my boss has actually submitted his resignation letter. This is a real big shock to me. He has been a fantastic boss..... sighz.....
Thankfully, the remaining 2 managers are awfully nice too. I'll be reporting to another one starting in August. Still... I never knew I'd feel like that... I already lost 1 good colleague last Friday... I'm losing yet another...........
How motivating huh?