We'll be safer on horseback." The horses of the three boys were tethered some distance away, and as mentioned before, the lads had to move slowly, for fear of stepping into some hole.

As they advanced they heard loud cries coming up from the bottom of the ravine.
"What can be wrong down there now ?" questioned the shipowner's son.
"I don't know," returned Roger.

"Perhaps they are shouting to warn us." "That is just what they are doing!" added Dave, quickly.

"Listen!" "Look out, up there!" came from the ravine.

"Look out! The steer is coming!" The boys quickened their pace, but hardly had they covered half the distance to where the horses were tied when Roger suddenly slipped and went down.
"Hurry up!" called out Phil, who was near.
"Oh!" moaned the senator's son, and his face took on a look of pain.
"What's wrong ?" asked Dave, coming up.
"My foot! It got twisted, and now it is fast in the hole!" answered Roger.