She held it up and out, and the tears flooding her eyes were of pure joy.

“It is found. It is freed. And all we are must hold it safe until we return it with its sisters to Oileán na Gloine, so they will shine for all, forever, over all worlds.”

She looked down at the star, sighed. And when she looked up, her eyes were clear of visions. “I’m not dreaming.”

“No, fáidh .” Bran, who’d come to stand with her, laid his hands on her shoulders. “You found it.”

“It’s real. Take it. We need to protect it from her. She’ll come for it.”

“I don’t think she can come here.” Riley moved closer, touched her fingertips to the flame. “Not to this place. It’s all light and heat,” she noted. “There’s no solidity. But . . . I swear I can feel it hum. Does it have weight?”

“No, but I can feel it. I can’t explain. Here.”

Riley took it from Sasha’s hand. “Mass without weight,” she added. “Active flame that doesn’t burn. I can’t physically feel the shape of it, but I can sense it.”

“We can save the scientific analysis for later, Doc.” Doyle kept one eye on the pool, one hand on his diving knife. “If she comes at us here, we’ve got nothing but a couple of knives, magic bracelets, and whatever Bran can pull out of his hat. We not only need to get this to the surface, but stowed away where she can’t get at it.”

“And when we get it to the surface?” Sawyer gestured to Riley, took his turn holding the Fire Star. “What then? Do you see what kind of light it’s pumping out? People on the mainland are going to see it, so just how do we keep it on the down low?”

“I can shield it,” Bran said. “Hopefully. And Doyle’s right, we’re not well fortified here, if she can get through to us. We need to get the star back to the villa, as quickly as we can.”

“Then you’d better take it.” Sawyer offered it to Bran. “You’re the most fortified wherever we are. Sasha, you should stick with him. Use my tank to get back to the boat. I can make it that far—”

“No, I can’t take your oxygen.”

“I’ve got the compass if I need it, but I’m a strong swimmer.”

“I can get Sawyer back to the boat, very fast.”

“A mermaid ride? That’s e-ticket.” He grinned at Annika. “No way I’m turning that down.”

“That works best.” Bran cupped his free hand over the star. “To protect, to respect, to shield, to hold.” He circled his hand around the star, forming a globe. Inside, the star shimmered, but quietly now.

“Nice,” Riley told him.

“I’m happy you think so. I’ve worked on that for quite some time. And since it’s the first I’ve used it on the actual star, I can’t say for certain how long it might hold. We should go.”

“Suit up.” Sawyer picked up his tanks. “Don’t give me that look,” he said to Sasha. “I’ve got transportation if I need it with Aqua Girl here. You and Bran get the star back to the boat. We’ve got your back.”

“I’ll take point with Riley.” Doyle hooked on his own tanks. “Annika and Sawyer on their six. As soon as everyone’s on board, we head back.” He looked at Bran. “For Christ’s sake, don’t drop that thing.”

He jumped into the pool, and when Riley followed suit, did a surface dive and was gone.

Bran gave Sasha’s hand a squeeze. “Ready?”

“We have to be.”

“I’m with you.” Holding the shielded star close to his side, he went in the water with her.

Sasha swam away from the light, but looked back toward it twice until she saw Sawyer, then Annika, iridescent tail flashing, coming behind them.

She pushed herself, quickening her strokes so Bran wouldn’t have to slow his own to keep pace with her.

Away from the cave and the light she got a better sense of just how far and deep she’d traveled. Fresh concern for Sawyer had her turning to look back.

Something flashed toward her, sharp teeth gleaming like silver, eyes glowing virulent yellow. Defenseless, she could do nothing but try to evade. Bran swept a hand through the water. She felt the power of the current even as what came at them—and what came with him—spun away.

When Bran gestured for her to go up, to surface, she shook her head. She saw both Riley and Doyle slashing at oncoming beasts with their diving knives. She wouldn’t desert friends.

She prepared to fight, bare-handed, saw Sawyer slam his knife into the belly of what looked like a small shark with a massive maw. Annika’s tail slashed out, swept a line of them away with a force that turned them to oily black smudges on the water.

Something hit her like a battering ram in the back, sent her tumbling helplessly in the water. Three circled her, maws wide, teeth gleaming. She punched out, kicked out, adrenaline screaming through her as her fist seemed to sink into the spongy ooze of their bodies.

Lightning struck; their bodies exploded.

Annika streaked by, tail slashing attackers, as she pulled Sawyer with her.

Bran wrapped one arm around Sasha, and rode the lightning to the surface. He all but shoved her up the ladder onto the boat where Sawyer leaned over the rail coughing up water.

“Annika,” he managed. “She went back. Riley. Doyle.”

Before Sasha understood, Bran pushed the star into her hand, and plunged back into the water.