Read the following message.
Dear Ezra,
I feel bad about not being there for your big day today. Sixteen at last! Now you can finally sign up for the lifeguard training course you have been talking about since you were small. A parcel should reach your mailbox any day now, and I hope it makes up for my missing the party. I won't spoil the surprise, but it has something to do with the night sky. I picked it up during my travels here in New Brunswick.
