was cautionary as she nodded discreetly toward Ferris and mouthed something Langdon couldn’t understand. Before he could ask her for clarification, though, Ferris glanced back, a split second too late, for Sienna had already averted her eyes and was staring directly at Ferris.
“You okay, Doctor?” she asked innocently.
Ferris nodded and climbed faster.
The talented actress, Langdon thought, but what was she trying to tell me?
When they reached the second tier, they could see the entire basilica spread out beneath them. The sanctuary had been constructed in the form of a Greek Cross, far more square in appearance than the elongated rectangles of St. Peter’s or Notre-Dame. With a shorter distance from narthex to altar, St. Mark’s exuded a robust, sturdy quality, as well as a feeling of greater accessibility.
Not to appear too accessible, however, the church’s altar resided behind a columned screen topped by an imposing crucifix. It was sheltered by an elegant ciborium and boasted one of the most valuable altar-pieces in the world—the famed Pala d’Oro. An expansive backdrop of gilded silver, this “golden cloth” was a fabric only in the sense that it was a fused tapestry of previous works—primarily Byzantine enamel—all interwoven into a single Gothic frame. Adorned with some thirteen hundred pearls, four hundred garnets, three hundred sapphires, as well as emeralds, amethysts, and rubies, the Pala d’Oro was considered, along with the Horses of St. Mark’s, to be one of the finest treasures in Venice.
Architecturally speaking, the word basilica defined any eastern, Byzantine-style church erected in Europe or the West. Being a replica of Justinian’s Basilica of the Holy Apostles in Constantinople, St. Mark’s was so eastern in style that guidebooks often suggested it as a viable alternative to visiting Turkish mosques, many of which were Byzantine cathedrals that had been turned into Muslim houses of worship.
While Langdon would never consider St. Mark’s a stand-in for the spectacular mosques of Turkey, he did have to admit that one’s passion for Byzantine art could be satisfied with a visit to the secret suite of rooms just off the right transept in this church, in which was hidden the so-called Treasure of St. Mark—a glittering collection of 283 precious icons, jewels, and chalices acquired during the looting of Constantinople.
Langdon was pleased to find the basilica relatively quiet this afternoon. There were still throngs of people, but at least there was room to maneuver. Weaving in and out of various groups, Langdon guided Ferris and Sienna toward the west window, where visitors could step outside and see the horses on the balcony. Despite Langdon’s confidence in their ability to identify the doge in question, he remained concerned about the step they’d have to take after that—locating the doge himself. His tomb? His statue? This would probably require some form of assistance, considering the hundreds of statues housed in the church proper, the lower crypt, and the domed tombs along the church’s north arm.
Langdon spotted a young female docent giving a tour, and he politely interrupted her talk. “Excuse me,” he said. “Is Ettore Vio here this afternoon?”
“Ettore Vio?” The woman gave Langdon an odd look. “Sì, certo, ma—” She stopped short, her eyes brightening. “Lei è Robert Langdon, vero?!” You’re Robert Langdon, aren’t you?
Langdon smiled patiently. “Sì, sono io. Is it possible to speak with Ettore?”
“Sì, sì!” The woman motioned for her tour group to wait a moment and hurried off.
Langdon and the museum’s curator, Ettore Vio, had once appeared together in a short documentary about the basilica, and they had kept in touch ever since. “Ettore wrote the book on this basilica,” Langdon explained to Sienna. “Several of them, actually.”
Sienna still looked strangely unnerved by Ferris, who stayed close while Langdon led the group across the upper register toward the west window, from which the horses could be seen. As they reached the window, the stallions’ muscular hindquarters became visible in silhouette against the afternoon sun. Out on the balcony, wandering tourists enjoyed close contact with the horses as well as a spectacular panorama of St. Mark’s Square.
“There they are!” Sienna exclaimed, moving toward the door that led to the balcony.
“Not exactly,” Langdon said. “The horses we see on the balcony are actually just replicas. The real Horses of St. Mark’s are kept inside for safety and preservation.”
Langdon guided Sienna and Ferris along a corridor toward a well-lit alcove where an identical grouping of four stallions appeared to be trotting toward them out of a backdrop of brick archways.
Langdon motioned admiringly to the statues. “Here are the