| Issue | #13 |
| Published | October-December 1953 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | ? |
| Notes | Indicia says "Published quarterly". |
| Characters | Lassie |
| Genre | animal |
| Pencils | ? (painting) |
| Inks | ? (painting) |
| Colors | ? (painting) |
| Notes | Indicia says "Published quarterly". |
| Synopsis | Facts about the Matto Grosso. |
| Genre | fact; animal |
| Letters | typeset |
| Notes | Inside front cover. |
| Characters | Rocky Langford; Gerry; Ben; Mr. Lawrence; Lassie; Mr. Fletcher; Mrs. Fletcher; Jose Dos Patos |
| Synopsis | Gerry and Rocky travel to Brazil to set up their homestead in the wilderness, bringing Ben and Lassie with them. They hire Jose dos Patos as their guide. |
| Genre | animal; jungle |
| Letters | typeset |
| Notes | Story ends on back cover. Inside back cover in black and white. |