Daggerspell guardians – anyone ever seen or created stats for “The emerald knives of seven truths” (3.5)

In the ‘Complete Adventurer’ the Daggerspell Guardians are seeking a pair of daggers called the emerald knives of seven truths.

“Lore of the Guild: Many of the greatest treasures of the Daggerspell Guardians are daggers of great power. Two of the most treasured of these daggers, the emerald knives of seven truths, were lost years ago by a daggerspell shaper who fell in battle against a powerful vampire named Malkan Ry-Ul. Both the knives and the vampire have been missing for many years, but recently travelers from the east have reported that a great city there is haunted by a killer who leaves strange green cuts on the bodies of his victims – a signature side effect of the magic of the emerald knives”.

Has anyone seen or created (or have any advice) for their stats please?

For info: I’m playing a daggerspell shaper searching for them.

To qualify to become one a character must fulfill all the following criteria:

Alignment: Any nonevil.
Skills: Concentration 8 ranks.
Feats: Weapon Focus (dagger), Two-Weapon Fighting.
Special: Wild shape class feature.
Special: Either sneak attack +1d6 or skirmish +1d6.

This makes me wonder if the daggers either do some of these things (as they may have inspired the creation of said group in the first place)?!