Her mind will be instrumental for Decker's future plans,
but she first had to be "acquired" by Decker's Crew.

As instructed in the 4th Dimension,
the Hjalmar sisters created "a cause in time".

The Cause: Issue "a harsh warning" to Daniella Van
der Zee regarding "being seen with a Merovingian".

This warning had several effects that
lead to several future events:

For Ms. Van der Zee: She got a location:
"SAN EL-HAGAR (TANIS), EGYPT" .

For The Merovingian Clan: They got a location
"AXUM, ETHIOPIA" AND a piece of The Chess Service.

For Emily Eydis: She had to be in "the private room",
where she got a chance to "speak to The Waitress".

The Motive Behind Creating "A Cause in Time"

The Hjalmar sisters and "The Higher Forces at
work in the human world" intend to get the waitress
hired by Decker, before she left the country.