diff --git a/SOLDOUT_waiting_for_stock.list b/SOLDOUT_waiting_for_stock.list
index 1187d69..c7d3ca6 100644
--- a/SOLDOUT_waiting_for_stock.list
+++ b/SOLDOUT_waiting_for_stock.list
@@ -1,3 +1,4 @@
 # name date
 Love potion 7/12/1215
-Excalibur 30/05/542 
+Excalibur 30/05/542
+philosopher's stone 28/09/2026
diff --git a/product.list b/product.list
index f892f83..9ff1028 100644
--- a/product.list
+++ b/product.list
@@ -1,4 +1,4 @@
 # product price 
 arrow 1
 bow 25
-philosopher's_stone 100 
+philosopher's_stone 0 
diff --git a/setup_ssh b/setup_ssh
new file mode 100755
index 0000000..5c7d0a5
--- /dev/null
+++ b/setup_ssh
@@ -0,0 +1,91 @@
+#!/usr/bin/env sh
+
+# Run by the player, from inside the game, as "./setup_ssh".
+# Creates a dedicated ssh key for github and the matching ~/.ssh/config entry.
+#
+# Inside the game $HOME is the game's World directory, so "~/.ssh" is the
+# game's own .ssh.  The player chooses whether that should be a real directory
+# (the key stays inside the game) or a symbolic link to their real ~/.ssh (the
+# key also works outside the game).
+
+printf '%s' "Do you want to setup the ssh authentification method to work outside of the game (y/n)? "
+read -r globalinstall
+
+if [ "$globalinstall" = "y" ]
+then
+    if [ ! -d "${REAL_HOME}/.ssh" ]
+    then
+        echo "creating ~/.ssh directory (outside the game)"
+        mkdir "${REAL_HOME}/.ssh"
+        chmod 700 "${REAL_HOME}/.ssh"
+    fi
+    # replace the game's .ssh (real directory or stale symlink) by a link to
+    # the real one
+    if [ -L "${GSH_HOME}/.ssh" ]
+    then
+        rm -f "${GSH_HOME}/.ssh"
+    elif [ -e "${GSH_HOME}/.ssh" ]
+    then
+        rm -rf "${GSH_HOME}/.ssh"
+    fi
+    ln -s "${REAL_HOME}/.ssh" "${GSH_HOME}/.ssh"
+    identityfile_path="${REAL_HOME}/.ssh/id_rsa.git"
+else
+    # the key stays inside the game: .ssh has to be a real directory
+    if [ -L "${GSH_HOME}/.ssh" ]
+    then
+        rm -f "${GSH_HOME}/.ssh"
+    elif [ -e "${GSH_HOME}/.ssh" ]
+    then
+        rm -rf "${GSH_HOME}/.ssh"
+    fi
+    mkdir "${GSH_HOME}/.ssh"
+    chmod 700 "${GSH_HOME}/.ssh"
+    identityfile_path="${GSH_HOME}/.ssh/id_rsa.git"
+fi
+
+# create ~/.ssh/id_rsa.git
+if [ ! -e ~/.ssh/id_rsa.git ]
+then
+    ssh-keygen -t rsa -f ~/.ssh/id_rsa.git -N ""
+    chmod 600 ~/.ssh/id_rsa.git
+fi
+
+# "IdentitiesOnly yes" matters: without it ssh still offers every key held by
+# ssh-agent, and github accepts one of those instead of the key we just made.
+# A player who already works with github on this machine would then silently
+# keep using their other account -- the mission would pass without the new key
+# ever being tried, and the pushes of the next missions would go elsewhere.
+github_config() {
+    echo "Host github.com"
+    echo "    Hostname github.com"
+    echo "    User git"
+    echo "    IdentityFile ${identityfile_path}"
+    echo "    IdentitiesOnly yes"
+}
+
+if [ ! -e ~/.ssh/config ]
+then
+    github_config >> ~/.ssh/config
+elif grep -q github.com ~/.ssh/config
+then
+    echo "file ~/.ssh/config already has instruction for github: The script did not try to edit it."
+    echo "We do expect the following lines: (please check)"
+    github_config
+else
+    echo "adding configuration for github in ssh config file"
+    {
+        echo ""
+        github_config
+    } >> ~/.ssh/config
+fi
+
+echo ""
+echo "Step 1 completed. Now you can do Step 2:"
+echo ""
+echo "go to  https://github.com/settings/keys"
+echo 'click on "New ssh key", put as title the name of this machine'
+echo "and paste the following content:"
+echo ""
+echo ""
+cat ~/.ssh/id_rsa.git.pub
diff --git a/status b/status
index 843e28e..1400569 100644
--- a/status
+++ b/status
@@ -1 +1,12 @@
 I have succeed level 1 
+I have succeed level 14 on Mon Sep 28 03:54:51 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 03:56:25 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 03:58:33 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:00:31 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:01:06 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:02:41 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:03:25 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:04:05 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:05:36 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:06:27 PM CEST 2026
+I have succeed level 14 on Mon Sep 28 04:07:32 PM CEST 2026