It seemed like a good trade, and he’d be more than happy to make good use of an invitation.
“Here.” He flicked his wrist and produced a simple, glossy, black card. On one side, an ornate symbol that looked incredibly similar to a fingerprint. It was printed with a red, holographic ink.
On the other side, in opalescent ink, a single word in elegant script: Almadel.
"A drop of blood," he said, nodding to the card. "...Press your finger into it. A bit dramatic, I know, but if I didn’t have precautions in place I’d get calls all the time, and I just do not have the means to travel to Earth for every little thing. I only give these out to people I like, people I trust. Now, it’ll only work once, so make it count."
He smiled, and held the card out between two fingers.
“Cell phones don’t always work in space, so it’s the most reliable way to get me.”
Eos Galvus