Cassandra Clare's Next Series After 'TDA' Will be Called 'THE WICKED POWERS'

We TLH is still a mystery title, but Cassandra Clare gave us hints about one of her next series: TWP. The title comes from the Shadowhunter Rhyme:

[...]Saffron lights the victory march,
Green will mend our broken hearts.
Silver for the demon towers,
And bronze to summon wicked powers.

The Wicked Powers will take place 3 years after the end of The Dark Artifices.

"what year will TWP take place since TDA takes place after 5 years of TMI?" Three years after the end of TDA. @TheBookFanatics

— Cassandra Clare (@cassieclare) June 26, 2013

After some clever Shadowhunters guessed "The Wicked Powers ," Cassandra Clare tweeted:

Y'all are so clever.
— Cassandra Clare (@cassieclare) June 26, 2013