Élise handed Sophia an ancient map, yellowed with age. "This will lead you to the Heart of Umbra," she said.
Sophia's eyes scanned the map, deciphering the cryptic symbols. "We'll need to navigate the Shadow Rivers," she said.
Bastien's loup-garou form growled. "Treacherous waters."
Adèle nodded. "We'll face the Umbra's darkest creatures."
Élise's gaze turned solemn. "But you must reach the Heart. It holds the key to breaking the curse."
As they set off, the Shadow Rivers' eerie glow surrounded them. Sophia's inner light illuminated the path, guiding them through twisting currents.
Suddenly, a creature emerged from the depths. A massive serpent, its body woven from darkness.
"The Devourer of Souls," Élise whispered.
Bastien transformed, his loup-garou form clashing with the serpent. Adèle's vampire strength joined the battle.
Sophia focused on the serpent's core. "I'll weaken its hold on the Umbra."
With a deep breath, Sophia channeled her ancestral power. The bayou's energy surged through her.