diff --git a/public/css/building.css b/public/css/building.css
index 810eacb..278aaa2 100644
--- a/public/css/building.css
+++ b/public/css/building.css
@@ -529,3 +529,43 @@ body {
     transform: translate(-50%, -50%);
   }
 }
+
+/* =========================
+   Schwarzmarkt
+========================= */
+#market-pages {
+  display: flex;
+  flex-direction: column;
+
+  gap: 8px;
+
+  margin-top: 15px;
+}
+
+.market-page {
+  padding: 8px 12px;
+
+  border: 1px solid #8b6a3c;
+
+  background: rgba(0, 0, 0, 0.15);
+}
+
+.market-page.owned {
+  color: #3cff3c;
+}
+
+.market-page.buy {
+  cursor: pointer;
+
+  background: #6b4b2a;
+
+  color: white;
+}
+
+.market-page.buy:hover {
+  background: #8b6a3c;
+}
+
+.market-page.locked {
+  opacity: 0.4;
+}
diff --git a/public/js/buildings/schwarzmarkt.js b/public/js/buildings/schwarzmarkt.js
index 3eef8a0..42de1f3 100644
--- a/public/js/buildings/schwarzmarkt.js
+++ b/public/js/buildings/schwarzmarkt.js
@@ -4,28 +4,51 @@ export async function loadSchwarzmarkt() {
   ui.innerHTML = `
 <h2>Schwarzmarkt</h2>
 
-<div id="market-info"></div>
-
-<button id="buy-page">Inventarseite kaufen</button>
+<div id="market-pages"></div>
 `;
 
-  loadMarketInfo();
+  loadPages();
 }
 
-async function loadMarketInfo() {
+async function loadPages() {
   const res = await fetch("/api/blackmarket/pages");
   const data = await res.json();
 
-  const info = document.getElementById("market-info");
+  const container = document.getElementById("market-pages");
 
-  info.innerHTML = `
-<p>Freigeschaltete Seiten: ${data.ownedPages} / ${data.maxPages}</p>
-<p>Inventarslots: ${data.slots}</p>
+  let html = "";
+
+  for (let i = 1; i <= 8; i++) {
+    if (data.ownedPages.includes(i)) {
+      html += `
+<div class="market-page owned">
+Seite ${i} ✔
+</div>
 `;
+    } else {
+      const price = data.prices.find((p) => p.page === i);
+
+      if (price) {
+        html += `
+<div class="market-page buy" data-page="${i}">
+Seite ${i} Kaufen (${price.price} Gold)
+</div>
+`;
+      } else {
+        html += `
+<div class="market-page locked">
+Seite ${i} 🔒
+</div>
+`;
+      }
+    }
+  }
+
+  container.innerHTML = html;
 }
 
 document.addEventListener("click", async (e) => {
-  if (e.target.id !== "buy-page") return;
+  if (!e.target.classList.contains("buy")) return;
 
   const res = await fetch("/api/blackmarket/buy-page", {
     method: "POST",
@@ -40,5 +63,5 @@ document.addEventListener("click", async (e) => {
 
   alert("Seite " + data.page + " freigeschaltet!");
 
-  location.reload();
+  loadPages();
 });
diff --git a/routes/blackmarket.js b/routes/blackmarket.js
index 9e1ef82..43d7686 100644
--- a/routes/blackmarket.js
+++ b/routes/blackmarket.js
@@ -3,4 +3,104 @@ const router = express.Router();
 const db = require("../database/database");
 const auth = require("../middleware/auth");
 
+router.get("/pages", auth, async (req, res) => {
+  const userId = req.session.user.id;
+
+  try {
+    const [owned] = await db.query(
+      `
+      SELECT page
+      FROM user_inventory_pages
+      WHERE user_id = ?
+      ORDER BY page
+    `,
+      [userId],
+    );
+
+    const [prices] = await db.query(`
+      SELECT page, price
+      FROM inventory_page_prices
+      ORDER BY page
+    `);
+
+    res.json({
+      ownedPages: owned.map((p) => p.page),
+      prices: prices,
+    });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: "DB Fehler" });
+  }
+});
+
+router.post("/buy-page", auth, async (req, res) => {
+  const userId = req.session.user.id;
+
+  try {
+    const [[maxPage]] = await db.query(
+      `
+      SELECT MAX(page) AS page
+      FROM user_inventory_pages
+      WHERE user_id = ?
+    `,
+      [userId],
+    );
+
+    const nextPage = (maxPage.page || 1) + 1;
+
+    const [[priceRow]] = await db.query(
+      `
+      SELECT price
+      FROM inventory_page_prices
+      WHERE page = ?
+    `,
+      [nextPage],
+    );
+
+    if (!priceRow) {
+      return res.json({ error: "Max Seiten erreicht" });
+    }
+
+    const price = priceRow.price;
+
+    const [[account]] = await db.query(
+      `
+      SELECT gold
+      FROM accounts
+      WHERE id = ?
+    `,
+      [userId],
+    );
+
+    if (account.gold < price) {
+      return res.json({ error: "Nicht genug Gold" });
+    }
+
+    await db.query(
+      `
+      UPDATE accounts
+      SET gold = gold - ?
+      WHERE id = ?
+    `,
+      [price, userId],
+    );
+
+    await db.query(
+      `
+      INSERT INTO user_inventory_pages (user_id,page)
+      VALUES (?,?)
+    `,
+      [userId, nextPage],
+    );
+
+    res.json({
+      success: true,
+      page: nextPage,
+    });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: "DB Fehler" });
+  }
+});
+
 module.exports = router;