PROLOGUE
In the near future
S low down, Marisa,” Lucan Roarke warned his twin.
They were deep inside the cave he’d discovered in the Welsh countryside in the shadow of Cadbury Castle, and his helmet light had settled on a gaping crack in the compacted clay of the cavern’s floor. “Don’t step on that—”
“What?” Marisa looked back at him just as the ground opened beneath her feet. Falling, she flailed her arms and clawed at the cave wall for a handhold, but the loose earth crumbled beneath her fingertips, and gravity dragged her down through the crevice into the darkness below.
Lucan lunged to grab her, but the unstable earth lurched and dipped under him, throwing him off balance, and his fingers missed her by inches.
“Marisa!” The sound of splashing water drowned out his cry.
Lucan had brought his sister to Cadbury Castle for a vacation, and he’d been excited to show her this cave—his latest discovery in his quest for the Holy Grail. Although many dismissed the Grail as mythical, his years of exploration and research had convinced him the vessel actually existed.
Lucan peered through the gloom into the chasm, but his helmet light couldn’t penetrate the blackness. Even worse, the earthen sides of the hole made a steep vertical descent. Reaching for the heavy-duty flashlight he carried in his back pocket, he yelled, “Marisa? Talk to me, damn it.”
Nothing but silence answered him.
Closing his eyes, Lucan inhaled deeply and concentrated on linking his mind with hers, a telepathic communication the two had shared since they were little.
Marisa. Where are you?
In the water. Help me. I’m cold
.
Heart racing, Lucan shined the flashlight into the darkness and spotted her head above the rushing# _l c water.
“Lucan. Here.” Smart enough not to fight the powerful flow of water that tried to sweep her downstream, Marisa swam for the wall at an angle and clung to a rocky ledge.
“Hang on.”
She coughed and sputtered, then shot back, “If I let go, it won’t be on purpose. Hurry. It’s freezing.”
Lucan reached for the rope in his backpack and cursed himself for bringing his sister into the bowels of the cave. He’d sweet-talked her into coming along, desperate to break her out of her funk. Since her latest miscarriage, she’d been fighting off depression. He’d hoped this excursion would take her mind off her loss, at least for a little while. He hadn’t intended to distract her by risking her life and scaring her to death.
He uncoiled the rope, then leaned over the hole to see her lose her grip on the ledge. The current pulled her under. “Marisa!”
A split second later, a pale hand broke through the water and clutched a rock jutting from the wall. Marisa pulled her head and shoulders above the torrent, spat water, and forced her words through shivering lips. “I knew… I should have gone… to Club Med.”
He looped the rope around the biggest boulder within reach. Then he tossed the line down the narrow shaft. “Grab on and I’ll book the next flight to Cancún.”
Marisa stretched for the rope. And missed. Water surged over her head. Again she swam to the surface, but the current had carried her too far downstream to reach the lifeline.
With no other choice, Lucan jumped into the dark shaft. He fell about twelve feet before frigid water closed over his head and ripped away his glasses. His flesh went numb, but he managed to keep a grip on his waterproof flashlight. His lungs seized and his vision blurred. Forcing his shocked limbs to move, he kicked for the surface. And heard Marisa’s scream. Turning around, he swam in the direction where he’d last seen her.
Already his teeth chattered. He struggled for breath, and his waterlogged clothing and boots weighed him down. The raging current swept him under, but his concern was for Marisa. She’d been in this icy water too long. Clenching his teeth, he kicked harder until he was finally close